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Next page >Onagraceae NEBC: 01073698 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts South Georgetown E. F. Williams 1899-8-2
GH: 01073725 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Newton: Newton, Hammond pond E. F. Williams 1895-11-3
GH: 01073724 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-9-1
NEBC: 01073743 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Westwood: Westwood E. F. Williams 1901-7-21
GH: 01073777 Circaea canadensis canadensis (Linnaeus) Hill USA: Massachusetts Colrain: Colrain E. F. Williams 1909-8-4
GH: 01674707 Circaea canadensis canadensis (Linnaeus) Hill USA: New Jersey Locust [Middletown Township] E. F. Williams 1903-7-3
GH: 01074510 Circaea sterilis Boufford USA: Maine Fort Kent: Fort Kent E. F. Williams 1 1900-8-1
GH: 01074564 Epilobium ciliatum Rafinesque USA: Maine Fort Kent: Fort Kent E. F. Williams 3 1901-8-9
GH: 01074565 Epilobium ciliatum Rafinesque USA: Maine Great Cranberry Island E. F. Williams 1 1899-7-24
GH: 01074566 Epilobium ciliatum Rafinesque USA: Maine Little Cranberry Island E. F. Williams 2 1899-7-24
NEBC: 01074608 Epilobium ciliatum Rafinesque USA: Maine Lincoln: Lincoln E. F. Williams 1903-7-30
GH: 01074694 Epilobium ciliatum Rafinesque USA: New Hampshire Dummer: Dummer E. F. Williams 1895-7-29
NEBC: 01074705 Epilobium ciliatum Rafinesque USA: New Hampshire Randolph: Randolph E. F. Williams 1895-7-24
GH: 01074780 Epilobium ciliatum Rafinesque USA: Vermont Ripton: Ripton E. F. Williams 1908-7-13
GH: 01074798 Epilobium ciliatum Rafinesque USA: Massachusetts Concord: Concord E. F. Williams 1908-8-29
GH: 01074836 Epilobium ciliatum Rafinesque USA: Massachusetts Conway: Conway E. F. Williams 1909-8-6
GH: 01074868 Epilobium ciliatum glandulosum (Lehmann) Hoch & P. H. Raven USA: Vermont Hancock: Hancock E. F. Williams 1908-7-18
NEBC: 00415854 Epilobium coloratum Biehler USA: Massachusetts Milton: Near Houghton Pond, Blue Hills Reser... E. F. Williams 1895-8-11
GH: 01040599 Epilobium coloratum Biehler USA: New Hampshire Hart's Location: Hart's Location E. F. Williams 1895-7-16
GH: 01040616 Epilobium coloratum Biehler USA: New Hampshire Hampton: Hampton E. F. Williams 1902-8-31
NEBC: 01075973 Epilobium coloratum Biehler USA: Massachusetts Manchester: Manchester E. F. Williams 1895-8-18
NEBC: 01075986 Epilobium coloratum Biehler USA: Massachusetts Lincoln: Lincoln, Sandy Pond E. F. Williams 1908-8-23
GH: 01075994 Epilobium coloratum Biehler USA: Massachusetts Westford: Westford E. F. Williams
NEBC: 01075996 Epilobium coloratum Biehler USA: Massachusetts Westford: Westford E. F. Williams
GH: 01075997 Epilobium coloratum Biehler USA: Massachusetts Weston: Weston E. F. Williams 1895-9-29
NEBC: 01041010 Epilobium coloratum Biehler USA: Massachusetts Norwood: Norwood E. F. Williams 1895-9-15
GH: 01041073 Epilobium coloratum Biehler USA: Rhode Island Rumford E. F. Williams 1 1903-9-6
GH: 01041076 Epilobium coloratum Biehler USA: Rhode Island Tiverton: Tiverton E. F. Williams 1903-9-27
GH: 00580855 Epilobium hirsutum Linnaeus USA: Massachusetts Winthrop: Winthrop E. F. Williams 1904-9-11
GH: 00580888 Epilobium hirsutum Linnaeus USA: Rhode Island Newport: Newport E. F. Williams 1908-9-12
NEBC: 00745660 Epilobium hornemannii Reichenbach USA: New Hampshire Randolph: Randolph E. F. Williams 1895-8-3
NEBC: 00745662 Epilobium hornemannii Reichenbach USA: New Hampshire Thompson and Meserves E. F. Williams 1895-8-2
NEBC: 00745664 Epilobium hornemannii Reichenbach USA: New Hampshire Mount Washington E. F. Williams 1895-7-7
NEBC: 00745675 Epilobium hornemannii Reichenbach USA: New Hampshire E. F. Williams 1893-7-30
NEBC: 00745692 Epilobium lactiflorum Haussknecht USA: New Hampshire Mount Washington E. F. Williams 1901-8-4
NEBC: 00745693 Epilobium lactiflorum Haussknecht USA: New Hampshire Mount Washington E. F. Williams 2 1895-7-11
NEBC: 01041125 Epilobium leptophyllum Rafinesque USA: Maine Fort Fairfield: Fort Fairfield E. F. Williams 2 1901-8-18
NEBC: 01041126 Epilobium leptophyllum Rafinesque USA: Maine Great Cranberry Island E. F. Williams 2 1899-7-20
NEBC: 01057620 Epilobium leptophyllum Rafinesque USA: Maine Kittery: Kittery E. F. Williams 1895-8-27
NEBC: 01057636 Epilobium leptophyllum Rafinesque USA: New Hampshire Randolph: Randolph E. F. Williams 1895-7-22
GH: 01057692 Epilobium leptophyllum Rafinesque USA: Vermont Willoughby E. F. Williams 1894-7-27
NEBC: 01057746 Epilobium leptophyllum Rafinesque USA: Massachusetts Norwood: Norwood E. F. Williams 1894-8-26
NEBC: 01040912 Epilobium palustre Linnaeus USA: Maine Fort Kent: Fort Kent E. F. Williams 1901-8-11
NEBC: 01040913 Epilobium palustre Linnaeus USA: Maine Van Buren: Van Buren E. F. Williams 1901-8-13
NEBC: 01040986 Epilobium palustre Linnaeus USA: New Hampshire Mount Washington E. F. Williams 2 1901-8-6
NEBC: 01040987 Epilobium palustre Linnaeus USA: New Hampshire Mount Washington E. F. Williams 1897-8-5
NEBC: 01040988 Epilobium palustre Linnaeus USA: New Hampshire Mount Washington E. F. Williams 1901-8-4
GH: 01040992 Epilobium palustre Linnaeus USA: New Hampshire Mount Willard E. F. Williams 1895-7-16
NEBC: 01041734 Epilobium palustre Linnaeus USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-29
GH: 01057760 Epilobium strictum Muhlenberg USA: Maine Crystal: Crystal E. F. Williams 1 1901-8-19
NEBC: 01057818 Epilobium strictum Muhlenberg USA: New Hampshire Hart's Location: Hart's Location E. F. Williams 1895-7-16
GH: 01779124 Ludwigia alternifolia Linnaeus USA: New Jersey Locust [Middletown Township] E. F. Williams 1900-9-1
NEBC: 00415863 Ludwigia palustris (Linnaeus) Elliott USA: Massachusetts Blue Hills Reservn. E. F. Williams 1895-9-2
GH: 00443477 Ludwigia palustris (Linnaeus) Elliott USA: Massachusetts Quincy: near the Dome, Blue Hills Reserv. E. F. Williams 1895-9-2
GH: 00745814 Ludwigia palustris (Linnaeus) Elliott USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-12
NEBC: 00745857 Ludwigia palustris (Linnaeus) Elliott USA: Massachusetts Concord: Concord E. F. Williams 1 1899-9-17
GH: 00745870 Ludwigia palustris (Linnaeus) Elliott USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-9-1
NEBC: 00745871 Ludwigia palustris (Linnaeus) Elliott USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-9-1
NEBC: 00745918 Ludwigia palustris (Linnaeus) Elliott USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-25
GH: 00745949 Ludwigia palustris (Linnaeus) Elliott USA: Rhode Island Cumberland: Cumberland E. F. Williams 1903-9-13
GH: 00745995 Ludwigia polycarpa Short & R. Peter USA: Massachusetts Winchester: Winchester, Round Pond E. F. Williams 1901-10-20
GH: 01026742 Oenothera biennis Linnaeus USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 1899-7-24
GH: 01026386 Oenothera biennis Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1895-8-1
GH: 01026387 Oenothera biennis Linnaeus USA: Massachusetts Dedham: Dedham E. F. Williams 1895-11-10
NEBC: 01026390 Oenothera biennis Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1895-7-24
GH: 01026798 Oenothera biennis Linnaeus USA: Vermont Willoughby E. F. Williams 1896-7-20
GH: 01026803 Oenothera biennis Linnaeus USA: Vermont Ripton: Ripton E. F. Williams 1908-7-11
GH: 00816039 Oenothera biennis Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1908-9-13
GH: 00593528 Oenothera glazioviana Micheli USA: Maine Northumberland E. F. Williams 1906-7-28
GH: 00593529 Oenothera glazioviana Micheli USA: Massachusetts Georgetown: Georgetown E. F. Williams 1906-7-4
NEBC: 00816107 Oenothera oakesiana (A. Gray) J. W. Robbins ex S. Watson USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-15
GH: 00816285 Oenothera parviflora Linnaeus USA: Massachusetts Lexington: Lexington E. F. Williams 1898-5-1
GH: 00415835 Oenothera perennis Linnaeus USA: Massachusetts Framingham: Framingham, Nobscot hill E. F. Williams 1901-7-7
GH: 00415836 Oenothera perennis Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1900-6-24
NEBC: 00568294 Oenothera perennis Linnaeus USA: Maine Fort Kent: Fort Kent E. F. Williams 2 1900-7-21
NEBC: 00568293 Oenothera perennis Linnaeus USA: Maine St. Francis E. F. Williams 1 1900-7-30
NEBC: 00568401 Oenothera perennis Linnaeus USA: New Hampshire Crawford E. F. Williams 1895-7-15
NEBC: 00568402 Oenothera perennis Linnaeus USA: New Hampshire Crawford E. F. Williams 1895-7-16
GH: 00568411 Oenothera perennis Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-27
NEBC: 00568532 Oenothera perennis Linnaeus USA: Massachusetts Revere: Revere E. F. Williams 1896-6-28
GH: 00568587 Oenothera perennis Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1907-7-6
NEBC: 00568623 Oenothera perennis Linnaeus USA: Connecticut Lyme: Lyme E. F. Williams 1905-6-17
GH: 00415836 Oenothera pumila Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1900-6-24
Ophioglossaceae NEBC: 00518053 Botrychium dissectum Sprengel USA: Massachusetts Norwood: Purgatory Swamp E. F. Williams 1897-8-22
NEBC: 00518054 Botrychium dissectum Sprengel USA: Massachusetts Quincy: Barberry Spring, Blue Hills [Reserva... E. F. Williams 1895-8-25
NEBC: 00654686 Botrychium dissectum Sprengel USA: Massachusetts Concord: Concord E. F. Williams 1897-10-24
NEBC: 00654708 Botrychium dissectum Sprengel USA: Massachusetts Woburn: Woburn, N. end of Shaker Glen E. F. Williams 1893-10-22
NEBC: 00654716 Botrychium dissectum Sprengel USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-9-1
NEBC: 00654717 Botrychium dissectum Sprengel USA: Massachusetts Concord: Concord, Annursnack hill E. F. Williams 1897-10-24
GH: 00654718 Botrychium dissectum Sprengel USA: Massachusetts Woburn: Woburn, N. end of Shaker Glen E. F. Williams 1893-10-22
NEBC: 00654762 Botrychium dissectum Sprengel USA: Massachusetts Scituate: Scituate E. F. Williams 1 1901-9-8
NEBC: 00654763 Botrychium dissectum Sprengel USA: Massachusetts Scituate: Scituate E. F. Williams 3 1901-9-8
GH: 00711395 Botrychium lanceolatum Angstrom USA: Maine Stacyville: woods between Stacyville and the... E. F. Williams 1 1900-7-5
GH: 00711497 Botrychium lanceolatum angustisegmentum (Pease & A. H. Moore) R. T. Clausen USA: New Hampshire Randolph: Randolph E. F. Williams 3 1897-1-2
NEBC: 00711505 Botrychium lanceolatum angustisegmentum (Pease & A. H. Moore) R. T. Clausen USA: New Hampshire Randolph: Randolph E. F. Williams 1897-8-2
GH: 00711519 Botrychium lanceolatum angustisegmentum (Pease & A. H. Moore) R. T. Clausen USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-17
GH: 00739145 Botrychium lanceolatum angustisegmentum (Pease & A. H. Moore) R. T. Clausen USA: Massachusetts Mount Greylock E. F. Williams 1901-6-16
GH: 00739192 Botrychium matricariifolium A. Brown USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1899-7-25
NEBC: 00739269 Botrychium matricariifolium A. Brown USA: New Hampshire Mount Adams E. F. Williams 1895-8-2
NEBC: 00739288 Botrychium matricariifolium A. Brown USA: New Hampshire Randolph: Randolph E. F. Williams 1897-8-2
GH: 00739348 Botrychium matricariifolium A. Brown USA: New Hampshire Troy: Troy E. F. Williams 1899-5-30
NEBC: 00739360 Botrychium matricariifolium A. Brown USA: Vermont Lemington: Mount Monadnock E. F. Williams 1895-7-28
NEBC: 00739367 Botrychium matricariifolium A. Brown USA: Vermont Willoughby E. F. Williams 1 1898-6-14
NEBC: 00739471 Botrychium matricariifolium A. Brown USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-7-20
NEBC: 00739496 Botrychium matricariifolium A. Brown USA: Massachusetts Mount Greylock E. F. Williams 1901-6-16
GH: 00654992 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Maine Lincoln: Lincoln E. F. Williams 1903-7-31
GH: 00654991 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Maine Middle Dam E. F. Williams 1903-8-2
NEBC: 00690073 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-29
NEBC: 00690095 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: New Hampshire Warren: Warren E. F. Williams 1 1907-7-31
NEBC: 00690134 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Vermont Lemington: Lemington E. F. Williams 1 1895-7-28
GH: 00639301 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
GH: 00639302 Botrychium multifidum (S. G. Gmelin) Ruprecht USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-7-20
NEBC: 00518053 Botrychium obliquum dissectum (Sprengel) Prantl USA: Massachusetts Norwood: Purgatory Swamp E. F. Williams 1897-8-22
NEBC: 00518054 Botrychium obliquum dissectum (Sprengel) Prantl USA: Massachusetts Quincy: Barberry Spring, Blue Hills [Reserva... E. F. Williams 1895-8-25
GH: 00675721 Botrychium oneidense (Gilbert) House USA: Massachusetts Norwood: Norwood E. F. Williams 1 1894-10-28
GH: 00668169 Botrychium simplex E. Hitchcock USA: Vermont Willoughby E. F. Williams 1898-6-14
NEBC: 00668170 Botrychium simplex E. Hitchcock USA: Vermont Willoughby E. F. Williams 1898-6-13
GH: 00675805 Botrychium simplex tenebrosum (A. A. Eaton) R. T. Clausen USA: Massachusetts Ashfield: Ashfield E. F. Williams 1 1907-7-12
NEBC: 00518053 Botrychium ternatum dissectum (Sprengel) Milde USA: Massachusetts Norwood: Purgatory Swamp E. F. Williams 1897-8-22
NEBC: 00518054 Botrychium ternatum dissectum (Sprengel) Milde USA: Massachusetts Quincy: Barberry Spring, Blue Hills [Reserva... E. F. Williams 1895-8-25
NEBC: 00690199 Botrychium virginianum (Linnaeus) Swartz USA: New Hampshire Mount Adams E. F. Williams 1894-7-15
GH: 00690206 Botrychium virginianum (Linnaeus) Swartz USA: New Hampshire Randolph: Randolph E. F. Williams 1894-7-15
NEBC: 00690207 Botrychium virginianum (Linnaeus) Swartz USA: New Hampshire Randolph: Randolph E. F. Williams 1894-7-18
NEBC: 00690338 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1896-5-30
GH: 00690384 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Goshen: Goshen E. F. Williams 1907-6-18
GH: 00690407 Botrychium virginianum (Linnaeus) Swartz USA: Massachusetts Mount Greylock E. F. Williams 1901-6-16
GH: 00679076 Ophioglossum pusillum Rafinesque USA: New Hampshire Dixville: Dixville E. F. Williams 1906-7-27
NEBC: 00679082 Ophioglossum pusillum Rafinesque USA: New Hampshire Randolph: Randolph E. F. Williams 1894-7-17
GH: 00679084 Ophioglossum pusillum Rafinesque USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
NEBC: 00679087 Ophioglossum pusillum Rafinesque USA: New Hampshire Randolph: Randolph E. F. Williams 1894-7-17
GH: 00679141 Ophioglossum pusillum Rafinesque USA: Vermont Willoughby E. F. Williams 1896-7-18
NEBC: 00679142 Ophioglossum pusillum Rafinesque USA: Vermont Willoughby E. F. Williams 1896-7-18
NEBC: 00679145 Ophioglossum pusillum Rafinesque USA: Vermont Willoughby E. F. Williams 1894-7-23
GH: 00679247 Ophioglossum pusillum Rafinesque USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-7-20
Orchidaceae NEBC: 00463662 Arethusa bulbosa Linnaeus USA: Rhode Island Cumberland: Cumberland E. F. Williams 1904-5-29
GH: 02043498 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Maine Cranberry Isles: Great Cranberry Island E. F. Williams 1897-7-17
GH: 02043562 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Holbrook: [no additional data] E. F. Williams 1899-6-18
GH: 02043563 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Sharon: [no additional data] E. F. Williams 1893-6-25
GH: 02043564 Calopogon tuberosus (Linnaeus) Britton, Stearn & Poggenburg USA: Massachusetts Sharon: Sanitarium bog E. F. Williams 1894-7-1
GH: 00689856 Calypso bulbosa (Linnaeus) Oakes USA: Vermont Willoughby E. F. Williams 2 1898-6-9
GH: 00834296 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Maine Mount Aziscoos E. F. Williams 2 1903-7-31
GH: 00834297 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Maine Frenchville: Frenchville E. F. Williams 1 1900-7-20
NEBC: 00834355 Coeloglossum viride bracteata (Muhlenberg) Grey USA: New Hampshire Randolph: Randolph E. F. Williams 1893-7-24
GH: 00834378 Coeloglossum viride bracteata (Muhlenberg) Grey USA: New Hampshire Warren: Warren E. F. Williams 1907-7-30
NEBC: 00834382 Coeloglossum viride bracteata (Muhlenberg) Grey USA: New Hampshire Troy: Troy E. F. Williams 1899-5-30
NEBC: 00834384 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Vermont Lemington: Lemington E. F. Williams 1895-7-28
GH: 00834416 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Vermont Wallingford: Wallingford E. F. Williams 1908-5-25
GH: 00834443 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Massachusetts Ashfield: Ashfield E. F. Williams 2 1907-7-14
GH: 00834474 Coeloglossum viride bracteata (Muhlenberg) Grey USA: Massachusetts Mount Greylock E. F. Williams 1 1901-6-16
GH: 01938083 Corallorhiza maculata (Rafinesque) Rafinesque Canada: New Brunswick St. Francis Parish E. F. Williams 1 1900-7-29
GH: 01938082 Corallorhiza maculata (Rafinesque) Rafinesque Canada: New Brunswick George Everett farm. Four Falls Grand Falls ... E. F. Williams 2 1901-8-17
AMES: 00462008 Corallorhiza maculata (Rafinesque) Rafinesque USA: New Hampshire Crawford Notch (Carroll County): Crawford E. F. Williams 1895-7-19
NEBC: 00463993 Corallorhiza maculata (Rafinesque) Rafinesque USA: New Hampshire Harts Location: Crawford E. F. Williams 1895-7-17
AMES: 00462065 Corallorhiza maculata (Rafinesque) Rafinesque USA: Massachusetts South Georgetown: South Georgetown E. F. Williams 1899-8-1
NEBC: 00462072 Corallorhiza maculata (Rafinesque) Rafinesque USA: Massachusetts Lincoln: Lincoln E. F. Williams 1898-8-28
GH: 00462121 Corallorhiza maculata (Rafinesque) Rafinesque USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-7
AMES: 00462170 Corallorhiza maculata (Rafinesque) Rafinesque USA: Rhode Island Cumberland: Cumberland E. F. Williams 2 1903-9-13
NEBC: 00754092 Corallorhiza maculata occidentalis (Lindley) W. J. Schrenk USA: New Hampshire Mount Madison E. F. Williams 1895-7-23
GH: 00689939 Corallorhiza odontorhiza (Willdenow) Poiret USA: Rhode Island Cumberland: Cumberland E. F. Williams 1 1903-9-13
NEBC: 00834600 Corallorhiza trifida Châtelain USA: New Hampshire Hart's Location: Hart's Location E. F. Williams 1 1895-7-16
NEBC: 00834631 Corallorhiza trifida Châtelain USA: New Hampshire Jaffrey: Jaffrey E. F. Williams 1 1899-5-30
GH: 01021033 Corallorhiza trifida Châtelain USA: Vermont Willoughby: Willoughby E. F. Williams 2&3 1896-7-19
GH: 01021034 Corallorhiza trifida Châtelain USA: Vermont Willoughby E. F. Williams 1 1898-6-9
GH: 01021035 Corallorhiza trifida Châtelain USA: Vermont Wallingford: Wallingford E. F. Williams 4 1908-5-25
GH: 01021092 Corallorhiza trifida Châtelain USA: Massachusetts Norwood: Norwood E. F. Williams 1896-6-21
GH: 01021093 Corallorhiza trifida Châtelain USA: Massachusetts Norwood: Norwood E. F. Williams 1895-5-19
GH: 01021116 Corallorhiza trifida Châtelain USA: Massachusetts Goshen: Goshen E. F. Williams 1907-6-18
GH: 01021132 Corallorhiza trifida Châtelain USA: Rhode Island Cumberland: Cumberland E. F. Williams 1904-5-15
AMES: 00834497 Corallorhiza trifida bracteata Chatelain USA: Maine Mount Desert Island E. F. Williams 1 1899-7-25
GH: 01966088 Cypripedium acaule Aiton USA: New Hampshire Jaffrey: [no additional data] E. F. Williams 1899-5-28
GH: 01966089 Cypripedium acaule Aiton USA: Vermont Willoughby: [no additional data] E. F. Williams 1898-6-9
GH: 00728197 Cypripedium arietinum R. Brown USA: Vermont Burlington: Burlington E. F. Williams 1896-5-15
GH: 00741540 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Willoughby E. F. Williams 2 1898-6-11
GH: 00741541 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Willoughby E. F. Williams 1 1898-6-11
NEBC: 00741542 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Willoughby E. F. Williams 1898-6-11
NEBC: 00741546 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Willoughby E. F. Williams 1898-6-11
NEBC: 00741548 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Willoughby E. F. Williams 1898-6-11
GH: 00712507 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Cornwall: Cornwall E. F. Williams 1908-5-27
GH: 00712521 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Vermont Brandon: Brandon E. F. Williams 1908-5-22
GH: 00712564 Cypripedium parviflorum pubescens (Willdenow) O. W. Knight USA: Massachusetts Ashfield: Ashfield E. F. Williams 1907-6-19
AMES: 00728374 Cypripedium reginae Walter USA: Vermont Hancock: Hancock E. F. Williams 1908-7-5
NEBC: 00728375 Cypripedium reginae Walter USA: Vermont Hancock: Hancock E. F. Williams 1908-7-5
GH: 00728414 Cypripedium reginae Walter USA: Massachusetts Williamstown: Williamstown E. F. Williams 1901-6-17
GH: 00728448 Galearis spectabilis (Linnaeus) Rafinesque USA: Vermont Willoughby E. F. Williams 1898-6-10
GH: 00728449 Galearis spectabilis (Linnaeus) Rafinesque USA: Vermont Willoughby E. F. Williams 1894-7-28
NEBC: 00728454 Galearis spectabilis (Linnaeus) Rafinesque USA: Vermont Willoughby E. F. Williams 1898-6-10
GH: 00728475 Galearis spectabilis (Linnaeus) Rafinesque USA: Vermont Brandon: Brandon E. F. Williams 1908-5-21
GH: 00728504 Galearis spectabilis (Linnaeus) Rafinesque USA: Massachusetts Ashfield: Ashfield E. F. Williams 1 1907-7-14
NEBC: 00354419 Goodyera pubescens (Willdenow) R. Brown USA: Massachusetts Milton: near Scott's Woods, Blue Hills Reser... E. F. Williams 1895-8-11
GH: 01014985 Goodyera pubescens (Willdenow) R. Brown USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1899-7-25
NEBC: 01021149 Goodyera pubescens (Willdenow) R. Brown USA: Massachusetts Boxford: Boxford E. F. Williams 1899-8-6
NEBC: 01021156 Goodyera pubescens (Willdenow) R. Brown USA: Massachusetts Manchester: Manchester E. F. Williams 1895-8-18
NEBC: 01016162 Goodyera pubescens (Willdenow) R. Brown USA: Massachusetts Wellesley: Wellesley E. F. Williams 1 1899-10-1
NEBC: 01016186 Goodyera pubescens (Willdenow) R. Brown USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-14
NEBC: 00032269 Goodyera repens (Linnaeus) R. Brown USA: Vermont Willoughby Mountain E. F. Williams 1896-7-24
GH: 00090589 Goodyera repens (Linnaeus) R. Brown USA: Vermont Willonghley Mt. E. F. Williams 1896-7-24
NEBC: 01021330 Goodyera repens (Linnaeus) R. Brown USA: Maine Mount Aziscoos E. F. Williams 1 1903-7-31
NEBC: 01016271 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Mount Adams E. F. Williams 1895-8-2
NEBC: 01016279 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Randolph: Randolph E. F. Williams 1895-8-14
NEBC: 01016281 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
GH: 01016291 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Randolph: Randolph E. F. Williams 1895-8-14
GH: 01016295 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Mount Willard E. F. Williams 1 1895-7-19
GH: 01016296 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Crawford E. F. Williams 2 1895-7-20
GH: 01016297 Goodyera repens (Linnaeus) R. Brown USA: New Hampshire Mount Adams E. F. Williams 3 1895-8-2
NEBC: 00032269 Goodyera repens ophioides Fernald USA: Vermont Willoughby Mountain E. F. Williams 1896-7-24
GH: 00090589 Goodyera repens ophioides Fernald USA: Vermont Willonghley Mt. E. F. Williams 1896-7-24
GH: 01016360 Goodyera tesselata Loddiges USA: Maine E. F. Williams 1899-9-4
GH: 01016386 Goodyera tesselata Loddiges USA: Maine Mount Aziscohos E. F. Williams 1903-7-31
GH: 01016387 Goodyera tesselata Loddiges USA: Maine Mount Katahdin E. F. Williams 1900-7-13
GH: 01016477 Goodyera tesselata Loddiges USA: Maine Kittery: Kittery E. F. Williams 1895-4-27
NEBC: 01016490 Goodyera tesselata Loddiges USA: New Hampshire Gorham: Gorham E. F. Williams 1895-8-5
NEBC: 01016495 Goodyera tesselata Loddiges USA: New Hampshire Errol: Errol E. F. Williams 1 1895-7-26
NEBC: 01016496 Goodyera tesselata Loddiges USA: New Hampshire Mount Adams E. F. Williams 1895-8-2
NEBC: 01016497 Goodyera tesselata Loddiges USA: New Hampshire Mount Adams E. F. Williams 1895-8-2
NEBC: 01016507 Goodyera tesselata Loddiges USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
GH: 01016557 Goodyera tesselata Loddiges USA: New Hampshire Wentworth: Wentworth E. F. Williams 1910-7-26
GH: 01021628 Goodyera tesselata Loddiges USA: New Hampshire Alstead: Alstead E. F. Williams 2 1901-7-27
GH: 01021627 Goodyera tesselata Loddiges USA: New Hampshire Walpole: Walpole E. F. Williams 3 1901-7-28
GH: 01021672 Goodyera tesselata Loddiges USA: Massachusetts Boxford: Boxford E. F. Williams 1 1899-8-6
NEBC: 01021675 Goodyera tesselata Loddiges USA: Massachusetts Manchester: Manchester E. F. Williams 1892-8-6
NEBC: 01021678 Goodyera tesselata Loddiges USA: Massachusetts Bedford: Bedford E. F. Williams 1907-8-25
NEBC: 01021696 Goodyera tesselata Loddiges USA: Massachusetts Tewksbury: Tewksbury E. F. Williams 1 1900-11-4
NEBC: 01021709 Goodyera tesselata Loddiges USA: Massachusetts Norwood: Norwood E. F. Williams 1895-9-15
NEBC: 01021711 Goodyera tesselata Loddiges USA: Massachusetts Walpole: Walpole E. F. Williams 1897-9-26
GH: 01021743 Goodyera tesselata Loddiges USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
NEBC: 00354428 Habenaria lacera (Michaux) R. Brown ex Sprengel USA: Massachusetts Milton: Blue Hills Reservation. Spring E. of... E. F. Williams 1895-8-11
NEBC: 00354424 Habenaria tridentata Hooker USA: Massachusetts Milton: near Scott's Woods, Blue Hills Reser... E. F. Williams 1895-8-11
GH: 00354403 Isotria verticillata (Muhlenberg ex Willdenow) Rafinesque USA: Massachusetts Milton: Wildcat Notch, Blue Hills Reservatio... E. F. Williams 1899-5-21
GH: 00354404 Isotria verticillata (Muhlenberg ex Willdenow) Rafinesque USA: Massachusetts Milton: Wildcat Notch, Blue Hills Reservatio... E. F. Williams 1899-5-21
GH: 00443568 Isotria verticillata (Muhlenberg ex Willdenow) Rafinesque USA: Massachusetts Milton: Wildcat Notch, Blue Hills Reservatio... E. F. Williams 1899-5-21
NEBC: 00354437 Liparis liliifolia (Linnaeus) Richard ex Lindley USA: Massachusetts Blue Hill, Blue Hills Reservation E. F. Williams 1900-6-10
GH: 00728574 Liparis liliifolia (Linnaeus) Richard ex Lindley USA: Massachusetts Greenfield: Greenfield E. F. Williams 1910-6-17
NEBC: 01052064 Liparis loeselii (Linnaeus) Richard USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 2 1899-7-24
NEBC: 01016764 Listera auriculata Wiegand USA: Maine Van Buren: Van Buren E. F. Williams 2 1901-8-13
GH: 01021784 Listera convallarioides (Swartz) Nuttall ex Elliott USA: Maine Fort Kent: Fort Kent E. F. Williams 1 1900-7-23
GH: 01021849 Listera convallarioides (Swartz) Nuttall ex Elliott USA: Vermont Willoughby E. F. Williams 1898-6-9
AMES: 01021850 Listera convallarioides (Swartz) Nuttall ex Elliott USA: Vermont Willoughby E. F. Williams 1898-6-9
AMES: 01016945 Listera cordata (Linnaeus) R. Brown USA: New Hampshire Mount Washington E. F. Williams 1895-7-11
GH: 01016960 Listera cordata (Linnaeus) R. Brown USA: New Hampshire Mount Adams E. F. Williams 1 1893-7-20
GH: 01016961 Listera cordata (Linnaeus) R. Brown USA: New Hampshire Crawford E. F. Williams 2 1894-7-20
GH: 01016959 Listera cordata (Linnaeus) R. Brown USA: New Hampshire Mount Clinton E. F. Williams 3 1895-7-18
GH: 01016977 Listera cordata (Linnaeus) R. Brown USA: Vermont Mount Mansfield E. F. Williams 1 1897-7-2
NEBC: 01016979 Listera cordata (Linnaeus) R. Brown USA: Vermont Mount Mansfield E. F. Williams 1897-7-2
NEBC: 00728614 Malaxis bayardii Fernald USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-12
NEBC: 01021957 Malaxis unifolia Michaux USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 1897-7-17
NEBC: 01052282 Malaxis unifolia Michaux USA: New Hampshire Randolph: Randolph E. F. Williams
GH: 01052320 Malaxis unifolia Michaux USA: New Hampshire Warren: Warren E. F. Williams 1907-7-21
GH: 01021887 Malaxis unifolia Michaux USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-8-1
GH: 01021888 Malaxis unifolia Michaux USA: Maine Fort Kent: Fort Kent E. F. Williams 1901-8-11
GH: 01021897 Malaxis unifolia Michaux USA: Maine Penobscot: Penobscot E. F. Williams 2 1900-7-18
GH: 01021899 Malaxis unifolia Michaux USA: Maine Great Cranberry Island E. F. Williams 1 1897-7-17
NEBC: 01021901 Malaxis unifolia Michaux USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-7-22
GH: 01052341 Malaxis unifolia Michaux USA: Vermont Maidstone: Maidstone E. F. Williams 1906-7-28
GH: 01052352 Malaxis unifolia Michaux USA: New Hampshire Randolph: Randolph E. F. Williams 1 1893-7-20
GH: 01052351 Malaxis unifolia Michaux USA: Vermont Willoughby Mountain E. F. Williams 2 1894-7-22
NEBC: 01052361 Malaxis unifolia Michaux USA: Vermont Willoughby Mountain E. F. Williams 1896-7-24
GH: 02028862 Malaxis unifolia Michaux USA: New Jersey Locust E. F. Williams 2 1903-7-3
GH: 01052745 Platanthera andrewsii (M. White) Luer USA: Maine Middle Dam E. F. Williams 2 1903-8-2
GH: 01052746 Platanthera andrewsii (M. White) Luer USA: Maine City Camp E. F. Williams 1 1900-7-17
GH: 01052771 Platanthera andrewsii (M. White) Luer USA: New Hampshire Oxford E. F. Williams 1907-8-2
NEBC: 01052782 Platanthera andrewsii (M. White) Luer USA: Vermont Pownal: Pownal E. F. Williams 1 1902-8-9
NEBC: 01079439 Platanthera aquilonis Sheviak USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 1899-7-24
NEBC: 01079448 Platanthera aquilonis Sheviak USA: Vermont Willoughby E. F. Williams 1896-7-18
GH: 01079530 Platanthera blephariglottis (Willdenow) Lindley USA: Massachusetts Manchester: Manchester E. F. Williams 1 1895-8-17
GH: 01055057 Platanthera blephariglottis (Willdenow) Lindley USA: Massachusetts Barnstable: Barnstable, Craigville E. F. Williams 1898-9-5
AMES: 02066593 Platanthera ciliaris (Linnaeus) Lindley USA: New Jersey Locust E. F. Williams 1900-9-1
AMES: 02066784 Platanthera clavellata (Michaux) Luer Canada: Nova Scotia On Big Bras d'Or Channel, New Campbellton E. F. Williams 1912-9-13
NEBC: 00354424 Platanthera clavellata (Michaux) Luer USA: Massachusetts Milton: near Scott's Woods, Blue Hills Reser... E. F. Williams 1895-8-11
NEBC: 01062006 Platanthera clavellata (Michaux) Luer USA: Maine Jemtland E. F. Williams 1900-8-2
NEBC: 01062015 Platanthera clavellata (Michaux) Luer USA: Maine Wassataquoik Valley E. F. Williams 1900-7-17
AMES: 01062057 Platanthera clavellata (Michaux) Luer USA: Maine Mount Desert Island E. F. Williams 3990 1899-7-19
NEBC: 01062065 Platanthera clavellata (Michaux) Luer USA: Maine Little Cranberry Island E. F. Williams 1 1899-7-24
NEBC: 01062134 Platanthera clavellata (Michaux) Luer USA: New Hampshire Randolph: Randolph E. F. Williams 1893-7-28
NEBC: 01062137 Platanthera clavellata (Michaux) Luer USA: New Hampshire Randolph: Randolph E. F. Williams 1 1896-7-29
GH: 01062192 Platanthera clavellata (Michaux) Luer USA: Vermont Sunderland: Sunderland E. F. Williams 2093 1900-8-6
GH: 01062193 Platanthera clavellata (Michaux) Luer USA: Vermont Maidstone: Maidstone E. F. Williams 1906-7-28
GH: 01062223 Platanthera clavellata (Michaux) Luer USA: Massachusetts Boxford: Boxford E. F. Williams 1906-8-19
NEBC: 01062277 Platanthera clavellata (Michaux) Luer USA: Massachusetts Westwood: Westwood E. F. Williams 1901-7-21
NEBC: 01062358 Platanthera dilatata dilatata USA: Maine Mount Desert Island E. F. Williams 1 1899-7-19
NEBC: 01062461 Platanthera dilatata dilatata USA: Maine Fort Kent: Fort Kent E. F. Williams 2 1900-7-24
NEBC: 01062493 Platanthera dilatata dilatata USA: Maine Wassataquoik Valley E. F. Williams 1 1900-7-7
GH: 01062549 Platanthera dilatata dilatata USA: New Hampshire Mount Washington E. F. Williams 1895-7-8
NEBC: 01062567 Platanthera dilatata dilatata USA: New Hampshire Mount Washington E. F. Williams 1893-7-12
GH: 01062663 Platanthera dilatata dilatata USA: Vermont Hancock: Hancock E. F. Williams 1908-7-5
AMES: 01062822 Platanthera flava herbiola (R. Brown) Luer USA: Massachusetts Scituate: Scituate E. F. Williams 1898-7-10
NEBC: 01062823 Platanthera flava herbiola (R. Brown) Luer USA: Massachusetts Scituate: Scituate E. F. Williams 1898-7-10
GH: 01062854 Platanthera flava herbiola (R. Brown) Luer USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-3
NEBC: 01062855 Platanthera flava herbiola (R. Brown) Luer USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-3
NEBC: 00462472 Platanthera grandiflora (Bigelow) Lindley USA: Massachusetts Norwood: Norwood E. F. Williams 1895-6-23
AMES: 00462515 Platanthera grandiflora (Bigelow) Lindley USA: Connecticut Lyme: Lyme E. F. Williams 1905-6-17
AMES: 00462232 Platanthera grandiflora (Bigelow) Lindley USA: Maine Bar Harbor: Green [Cadillac] Mt. E. F. Williams 1899-7-18
NEBC: 00462291 Platanthera grandiflora (Bigelow) Lindley USA: New Hampshire Cambridge: Cambridge E. F. Williams 1906-7-25
NEBC: 00462305 Platanthera grandiflora (Bigelow) Lindley USA: New Hampshire Randolph: Randolph, Boroman meadow E. F. Williams 1893-8-4
NEBC: 00462335 Platanthera grandiflora (Bigelow) Lindley USA: New Hampshire Plymouth: Plymouth E. F. Williams 1
NEBC: 00462300 Platanthera grandiflora (Bigelow) Lindley USA: New Hampshire Errol: E. F. Williams 1906-7-27
NEBC: 01055772 Platanthera hookeri (Torrey ex A. Gray) Lindley USA: New Hampshire Wentworth: Wentworth E. F. Williams 1910-7-26
GH: 01055839 Platanthera hookeri (Torrey ex A. Gray) Lindley USA: Massachusetts Buckland: Buckland E. F. Williams 1907-6-20
GH: 01055840 Platanthera hookeri (Torrey ex A. Gray) Lindley USA: Massachusetts Ashfield: Ashfield E. F. Williams 1907-7-9
GH: 01055705 Platanthera hookeri herbiola (Torrey ex A. Gray) Lindley USA: Maine Mount Desert Island E. F. Williams 1899-7-25
AMES: 02045367 Platanthera huronensis (Nuttall) Lindley Canada: New Brunswick Valley of the St. John river Opposite mouth ... E. F. Williams 1901-8-14
AMES: 02045368 Platanthera huronensis (Nuttall) Lindley Canada: New Brunswick Mouth of the Limestone river Four Falls E. F. Williams 1901-8-17
NEBC: 00728798 Platanthera huronensis (Nuttall) Lindley USA: Maine Fort Kent: Fort Kent E. F. Williams 1 1900-7-21
NEBC: 00728799 Platanthera huronensis (Nuttall) Lindley USA: Maine Ashland: Ashland E. F. Williams 2 1901-8-9
NEBC: 00728902 Platanthera huronensis (Nuttall) Lindley USA: New Hampshire Randolph: Randolph E. F. Williams 1893-7-25
GH: 00741045 Platanthera huronensis (Nuttall) Lindley USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-1
GH: 00741048 Platanthera huronensis (Nuttall) Lindley USA: Massachusetts Colrain: Colrain E. F. Williams 1910-6-18
NEBC: 00354428 Platanthera lacera (Michaux) G. Don USA: Massachusetts Milton: Blue Hills Reservation. Spring E. of... E. F. Williams 1895-8-11
AMES: 00462569 Platanthera lacera (Michaux) G. Don USA: Maine York: York E. F. Williams 1907-8-11
AMES: 00462591 Platanthera lacera (Michaux) G. Don USA: New Hampshire Warren: Warren E. F. Williams 1910-7-28
AMES: 00462607 Platanthera lacera (Michaux) G. Don USA: New Hampshire Alstead: Alstead E. F. Williams 1901-7-28
AMES: 00462608 Platanthera lacera (Michaux) G. Don USA: New Hampshire Warren: Warren E. F. Williams 2 1908-7-21
NEBC: 00462669 Platanthera lacera (Michaux) G. Don USA: Massachusetts Boxford: Boxford E. F. Williams 1 1906-8-16
NEBC: 00462680 Platanthera lacera (Michaux) G. Don USA: Massachusetts Newbury: Newbury E. F. Williams 1898-7-31
AMES: 00462795 Platanthera lacera (Michaux) G. Don USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
AMES: 00462794 Platanthera lacera (Michaux) G. Don USA: Massachusetts Colrain: Colraine E. F. Williams 1909-8-4
GH: 01055955 Platanthera macrophylla (Goldie) Lindley USA: Maine Mount Aziscohos E. F. Williams 1 1903-7-31
GH: 01055962 Platanthera macrophylla (Goldie) Lindley USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1899-7-25
GH: 01055992 Platanthera macrophylla (Goldie) Lindley USA: New Hampshire Warren: Warren E. F. Williams 1908-7-26
GH: 01052988 Platanthera macrophylla (Goldie) Lindley USA: Vermont Willoughby E. F. Williams 1896-7-18
GH: 01056011 Platanthera macrophylla (Goldie) Lindley USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
NEBC: 01077816 Platanthera obtusata (Banks ex Pursh) Lindley USA: Maine Randolph: Randolph E. F. Williams 1893-7-28
GH: 01077817 Platanthera obtusata (Banks ex Pursh) Lindley USA: Maine Mount Washington E. F. Williams 1895-7-11
GH: 01077848 Platanthera obtusata (Banks ex Pursh) Lindley USA: Vermont Willoughby E. F. Williams 2 1894-7-30
GH: 01077849 Platanthera obtusata (Banks ex Pursh) Lindley USA: Vermont Willoughby E. F. Williams 1 1894-7-23
NEBC: 01077919 Platanthera orbiculata (Pursh) Lindley USA: Maine Grafton E. F. Williams 1 1906-7-24
NEBC: 01056242 Platanthera orbiculata (Pursh) Lindley USA: New Hampshire Dixville: Dixville E. F. Williams 1895-7-27
NEBC: 01056251 Platanthera orbiculata (Pursh) Lindley USA: New Hampshire Randolph: Randolph E. F. Williams 1893-7-24
NEBC: 01056262 Platanthera orbiculata (Pursh) Lindley USA: New Hampshire Crawford E. F. Williams 1895-7-19
NEBC: 01056269 Platanthera orbiculata (Pursh) Lindley USA: New Hampshire Benton: Benton E. F. Williams 1907-7-28
NEBC: 01056270 Platanthera orbiculata (Pursh) Lindley USA: New Hampshire Bethlehem: Bethlehem E. F. Williams 1894-7-20
GH: 01056278 Platanthera orbiculata (Pursh) Lindley USA: New Hampshire Warren: Warren E. F. Williams 1 1907-7-21
GH: 01056304 Platanthera orbiculata (Pursh) Lindley USA: Vermont Ripton: Ripton E. F. Williams 1908-7-14
GH: 01056321 Platanthera orbiculata (Pursh) Lindley USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
GH: 01056327 Platanthera orbiculata (Pursh) Lindley USA: Massachusetts Mount Greylock E. F. Williams 1 1901-6-16
NEBC: 00462867 Platanthera psycodes (Linnaeus) Lindley USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-7-26
AMES: 00462901 Platanthera psycodes (Linnaeus) Lindley USA: Maine Bethel: Bethel E. F. Williams 1895-7-25
NEBC: 00462903 Platanthera psycodes (Linnaeus) Lindley USA: Maine Bethel: Bethel E. F. Williams 1895-7-25
AMES: 00462908 Platanthera psycodes (Linnaeus) Lindley USA: Maine Oxford: Middle Dam E. F. Williams 1903-8-2
AMES: 00462976 Platanthera psycodes (Linnaeus) Lindley USA: New Hampshire Colebrook: Colebrook E. F. Williams 1906-7-28
AMES: 00462962 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Scituate: Scituate E. F. Williams 1899-8-13
NEBC: 00462963 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Scituate: Scituate E. F. Williams 1899-8-13
AMES: 00462995 Platanthera psycodes (Linnaeus) Lindley USA: New Hampshire Piermont: Piermont E. F. Williams 1907-8-2
NEBC: 00462996 Platanthera psycodes (Linnaeus) Lindley USA: New Hampshire Wentworth: Wentworth E. F. Williams 1908-7-29
NEBC: 00485015 Platanthera psycodes (Linnaeus) Lindley USA: Vermont Lemington: Lemington E. F. Williams 1906-7-28
AMES: 00485022 Platanthera psycodes (Linnaeus) Lindley USA: Vermont Willoughby: Willoughby E. F. Williams 1894-7-25
NEBC: 00485043 Platanthera psycodes (Linnaeus) Lindley USA: Vermont Hancock: Hancock E. F. Williams 1908-7-18
NEBC: 00485065 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Boxford: Boxford E. F. Williams 1899-8-3
AMES: 00485067 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Georgetown: Georgetown E. F. Williams 1906-8-9
NEBC: 00485077 Platanthera psycodes (Linnaeus) Lindley USA: Massachusetts Framingham: Framingham E. F. Williams 1893-8-13
NEBC: 00462868 Platanthera psycodes (Linnaeus) Lindley USA: Maine On Allagash river at Twin Brook E. F. Williams 1900-7-28
NEBC: 00569636 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-14
AMES: 00569805 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Wilmington: Wilmington, Silver Lake E. F. Williams 1899-6-11
AMES: 00569824 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Sharon: Sharon E. F. Williams 1896-6-17
NEBC: 00569825 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Sharon: Sharon E. F. Williams 1893-6-25
AMES: 00569863 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Barnstable: Barnstable E. F. Williams 1896-7-4
NEBC: 00569886 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Gosnold: Gosnold E. F. Williams 1911-7-10
AMES: 00569912 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Ashfield: Ashfield E. F. Williams 1907-7-8
AMES: 00569861 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Georgetown: Georgetown E. F. Williams 1899-8-1
GH: 00569942 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Rhode Island Wickford E. F. Williams 2 1908-6-17
GH: 00569862 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: Massachusetts Craigville: E. F. Williams 1898-9-5
AMES: 02031027 Pogonia ophioglossoides (Linnaeus) Ker Gawler USA: New Jersey Locust E. F. Williams 1 1920-6-17
GH: 00354403 Pogonia verticillata (Muhlenberg ex Willdenow) Nuttall USA: Massachusetts Milton: Wildcat Notch, Blue Hills Reservatio... E. F. Williams 1899-5-21
GH: 00354404 Pogonia verticillata (Muhlenberg ex Willdenow) Nuttall USA: Massachusetts Milton: Wildcat Notch, Blue Hills Reservatio... E. F. Williams 1899-5-21
GH: 00443568 Pogonia verticillata (Muhlenberg ex Willdenow) Nuttall USA: Massachusetts Milton: Wildcat Notch, Blue Hills Reservatio... E. F. Williams 1899-5-21
GH: 01056406 Spiranthes cernua (Linnaeus) Richard USA: New Hampshire Hampton: Hampton E. F. Williams 1901-9-22
NEBC: 01056506 Spiranthes cernua (Linnaeus) Richard USA: Massachusetts Lincoln: Lexington, Mt. Tabor [Mt. Tabor is ... E. F. Williams 1 1897-9-19
NEBC: 01056522 Spiranthes cernua (Linnaeus) Richard USA: Massachusetts Tewksbury: Tewksbury E. F. Williams 2 1900-11-11
NEBC: 01063197 Spiranthes cernua (Linnaeus) Richard USA: Massachusetts Barnstable Town E. F. Williams 1896-9-7
NEBC: 01063198 Spiranthes cernua (Linnaeus) Richard USA: Massachusetts Barnstable Town E. F. Williams 1896-9-6
NEBC: 01063217 Spiranthes cernua (Linnaeus) Richard USA: Massachusetts Barnstable Town E. F. Williams 1897-9-12
NEBC: 01063575 Spiranthes cernua (Linnaeus) Richard USA: Rhode Island Cumberland: Cumberland E. F. Williams 1903-9-13
GH: 00443540 Spiranthes gracilis (Bigelow) L. C. Beck USA: Massachusetts Boston: Blue Hills Reservation, near Houghto... E. F. Williams 1895-8-11
GH: 01063178 Spiranthes lacera (Rafinesque) Rafinesque USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-8
GH: 01063030 Spiranthes lacera (Rafinesque) Rafinesque USA: Maine Mount Desert Island E. F. Williams 1 1899-7-27
GH: 01063060 Spiranthes lacera (Rafinesque) Rafinesque USA: Maine Gilead: Gilead E. F. Williams 2 1903-7-28
GH: 01063079 Spiranthes lacera (Rafinesque) Rafinesque USA: New Hampshire Randolph: Randolph E. F. Williams 1 1896-8-13
GH: 01063090 Spiranthes lacera (Rafinesque) Rafinesque USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-14
NEBC: 01063107 Spiranthes lacera (Rafinesque) Rafinesque USA: New Hampshire Alstead: Alstead E. F. Williams 1 1901-7-27
GH: 00443540 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Boston: Blue Hills Reservation, near Houghto... E. F. Williams 1895-8-11
NEBC: 01063652 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Brookline: Brookline, Taylor place E. F. Williams 1 1893-8-30
NEBC: 01063664 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Blue Hills Reservation E. F. Williams 1895-8-11
NEBC: 01063665 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Walpole: Walpole E. F. Williams 1897-9-26
NEBC: 01063668 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Plymouth: Plymouth E. F. Williams 1 1898-8-21
NEBC: 01063681 Spiranthes lacera gracilis (Bigelow) Luer USA: Massachusetts Barnstable Town E. F. Williams 1 1898-9-5
GH: 01008369 Spiranthes lucida (H. H. Eaton) Ames USA: Massachusetts Colrain: Colrain E. F. Williams 1910-6-18
GH: 01008375 Spiranthes lucida (H. H. Eaton) Ames USA: Massachusetts Williamstown: Williamstown E. F. Williams 1 1901-6-17
GH: 01008413 Spiranthes ochroleuca (Rydberg) Rydberg USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1893-9-3
NEBC: 01079019 Spiranthes romanzoffiana Chamisso USA: Vermont Willoughby E. F. Williams 1896-7-26
GH: 01079060 Spiranthes romanzoffiana Chamisso USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
NEBC: 01008487 Spiranthes romanzoffiana Chamisso USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-8-2
NEBC: 01008486 Spiranthes romanzoffiana Chamisso USA: Maine St. Francis E. F. Williams 1900-7-29
NEBC: 01008488 Spiranthes romanzoffiana Chamisso USA: Maine Winterville E. F. Williams 1901-8-9
NEBC: 01008522 Spiranthes romanzoffiana Chamisso USA: Maine Mount Aziscoos E. F. Williams 1903-7-31
NEBC: 01008574 Spiranthes romanzoffiana Chamisso USA: Maine York: York E. F. Williams 3 1903-7-16
GH: 01008594 Spiranthes romanzoffiana Chamisso USA: New Hampshire Northumberland: Northumberland E. F. Williams 1 1906-7-29
NEBC: 01008602 Spiranthes romanzoffiana Chamisso USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
NEBC: 01008612 Spiranthes romanzoffiana Chamisso USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-17
GH: 01008615 Spiranthes romanzoffiana Chamisso USA: New Hampshire Warren: Warren E. F. Williams 1 1910-7-22
GH: 01077991 Spiranthes romanzoffiana Chamisso USA: New Hampshire Warren: Warren E. F. Williams 2 1910-7-28
NEBC: 01008622 Spiranthes romanzoffiana Chamisso USA: New Hampshire Walpole: Walpole E. F. Williams 1901-7-28
AMES: 01008626 Spiranthes tuberosa Rafinesque USA: Massachusetts Plymouth: Plymouth E. F. Williams 3 1898-8-21
GH: 01008655 Spiranthes tuberosa Rafinesque USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
AMES: 02032634 Spiranthes tuberosa Rafinesque USA: New Jersey Locust E. F. Williams 1 1900-9-2
Orobanchaceae GH: 00775244 Agalinis acuta Pennell USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
GH: 00762929 Agalinis maritima (Rafinesque) Rafinesque USA: New Hampshire Hampton: Hampton E. F. Williams 1901-9-22
GH: 00762946 Agalinis maritima (Rafinesque) Rafinesque USA: New Hampshire Hampton: Hampton E. F. Williams 1901-9-22
NEBC: 00762978 Agalinis maritima (Rafinesque) Rafinesque USA: Massachusetts North Scituate E. F. Williams 1897-9-6
NEBC: 00375541 Agalinis paupercula (A. Gray) Britton USA: Massachusetts Quincy: Blue HIlls Reservation. W. of Rattle... E. F. Williams 1895-8-25
GH: 00642987 Agalinis paupercula (A. Gray) Britton USA: New Hampshire Hampton: Hampton E. F. Williams 1901-9-22
NEBC: 00645613 Agalinis paupercula borealis Pennell USA: New Hampshire Hampton: Hampton E. F. Williams 1902-8-31
GH: 00645614 Agalinis paupercula borealis Pennell USA: New Hampshire Hampton: Hampton E. F. Williams 2 1901-9-22
GH: 00645624 Agalinis paupercula borealis Pennell USA: Massachusetts Newbury: Newbury E. F. Williams 1899-8-7
NEBC: 00645660 Agalinis purpurea (Linnaeus) Pennell USA: Massachusetts Barnstable Town E. F. Williams 1896-9-7
GH: 00645867 Agalinis purpurea (Linnaeus) Pennell USA: Rhode Island Middletown: Middletown E. F. Williams 1908-9-12
NEBC: 00375541 Agalinis purpurea parviflora (Bentham) B. Boivin USA: Massachusetts Quincy: Blue HIlls Reservation. W. of Rattle... E. F. Williams 1895-8-25
NEBC: 00375546 Agalinis tenuifolia (Vahl) Rafinesque USA: Massachusetts Quincy: Blue Hills Reservation, near Barberr... E. F. Williams 1895-8-25
NEBC: 00645944 Agalinis tenuifolia (Vahl) Rafinesque USA: Vermont Pownal: Pownal E. F. Williams 1 1898-7-3
NEBC: 00664027 Agalinis tenuifolia (Vahl) Rafinesque USA: Massachusetts Brookline: Brookline, side of South St. E. F. Williams 2619 1901-9-30
NEBC: 00664047 Agalinis tenuifolia (Vahl) Rafinesque USA: Massachusetts Bolton: Bolton E. F. Williams 1902
NEBC: 00664066 Agalinis tenuifolia (Vahl) Rafinesque USA: Rhode Island Cumberland: Cumberland E. F. Williams 1903-9-13
GH: 00664100 Agalinis tenuifolia (Vahl) Rafinesque USA: Connecticut E. F. Williams
GH: 00664148 Aureolaria flava (Linnaeus) Farwell USA: Massachusetts Boxford: Boxford E. F. Williams 1906-8-18
NEBC: 00664149 Aureolaria flava (Linnaeus) Farwell USA: Massachusetts Boxford: Boxford E. F. Williams 1906-8-18
GH: 00664192 Aureolaria flava (Linnaeus) Farwell USA: Massachusetts Plymouth: Plymouth E. F. Williams 1898-8-21
GH: 00664204 Aureolaria flava (Linnaeus) Farwell USA: Massachusetts Buckland: Buckland E. F. Williams 1909-8-4
NEBC: 00518542 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Boston: Stony Brook Reserv. [Hyde Park/West ... E. F. Williams 1896-8-23
NEBC: 00518543 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Boston: Stony Brook Reservation [Hyde Park/W... E. F. Williams 1896-9-13
NEBC: 00518544 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Newton: by Hammond Pond Chestnut Hill E. F. Williams 1895-11-3
GH: 00502964 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Boxford: Boxford E. F. Williams 1906-8-18
GH: 00502963 Aureolaria pedicularia (Linnaeus) Rafinesque USA: Massachusetts Boston: West Roxbury E. F. Williams 1896-8-23
NEBC: 00518604 Aureolaria villosa Rafinesque USA: Massachusetts Blue Hills Reservation E. F. Williams 1909-9-6
GH: 00443510 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts Blue Hills Reservation E. F. Williams 1895-8-11
NEBC: 00518604 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts Blue Hills Reservation E. F. Williams 1909-9-6
NEBC: 00630615 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-13
NEBC: 00630617 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-14
GH: 00731044 Aureolaria virginica (Linnaeus) Pennell USA: Massachusetts Groveland: Groveland E. F. Williams 1906-8-9
GH: 00733376 Castilleja coccinea (Linnaeus) Sprengel USA: Massachusetts Sudbury: Sudbury E. F. Williams 1900-5-30
NEBC: 00733377 Castilleja coccinea (Linnaeus) Sprengel USA: Massachusetts Sud' E. F. Williams 1900-5-30
GH: 00733394 Castilleja coccinea (Linnaeus) Sprengel USA: Massachusetts Franklin: Franklin E. F. Williams 1897-6-17
GH: 00733435 Castilleja septentrionalis Lindley USA: Maine Allagash: Allagash E. F. Williams 1900-7-29
NEBC: 00733479 Castilleja septentrionalis Lindley USA: New Hampshire Mount Washington E. F. Williams 1895-7-11
NEBC: 00733480 Castilleja septentrionalis Lindley USA: New Hampshire Mount Washington E. F. Williams 1895-7-7
NEBC: 00733498 Castilleja septentrionalis Lindley USA: New Hampshire Mount Washington E. F. Williams 1893-7-13
NEBC: 00733501 Castilleja septentrionalis Lindley USA: New Hampshire Mount Washington E. F. Williams 1897-8-6
NEBC: 00733503 Castilleja septentrionalis Lindley USA: New Hampshire Mount Washington E. F. Williams 1893-7-12
GH: 00375668 Conopholis americana (Linnaeus) Wallroth USA: Massachusetts Stoneham: Virginia woods, Middlesex Fells Re... E. F. Williams 1898-4-19
GH: 00630779 Epifagus virginiana (Linnaeus) W. P. C. Barton USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1894-9-2
NEBC: 00630780 Epifagus virginiana (Linnaeus) W. P. C. Barton USA: Massachusetts E. F. Williams
NEBC: 00630792 Epifagus virginiana (Linnaeus) W. P. C. Barton USA: Massachusetts Gosnold: Gosnold E. F. Williams 1911-7-10
GH: 00679473 Euphrasia oakesii Wettstein USA: New Hampshire Mount Washington E. F. Williams 1901-8-6
GH: 01880722 Euphrasia stricta Host Canada: New Brunswick Saint John: [no additional data] E. F. Williams 1902-7-22
GH: 00443510 Gerardia flava Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1895-8-11
NEBC: 00518604 Gerardia flava Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1909-9-6
NEBC: 00375541 Gerardia paupercula (A. Gray) Britton USA: Massachusetts Quincy: Blue HIlls Reservation. W. of Rattle... E. F. Williams 1895-8-25
NEBC: 00518542 Gerardia pedicularia Linnaeus USA: Massachusetts Boston: Stony Brook Reserv. [Hyde Park/West ... E. F. Williams 1896-8-23
NEBC: 00518543 Gerardia pedicularia Linnaeus USA: Massachusetts Boston: Stony Brook Reservation [Hyde Park/W... E. F. Williams 1896-9-13
NEBC: 00518544 Gerardia pedicularia Linnaeus USA: Massachusetts Newton: by Hammond Pond Chestnut Hill E. F. Williams 1895-11-3
NEBC: 00375541 Gerardia purpurea paupercula A. Gray USA: Massachusetts Quincy: Blue HIlls Reservation. W. of Rattle... E. F. Williams 1895-8-25
NEBC: 00375546 Gerardia tenuifolia Vahl USA: Massachusetts Quincy: Blue Hills Reservation, near Barberr... E. F. Williams 1895-8-25
GH: 00443510 Gerardia virginica (Linnaeus) Britton, Sterns & Poggenburg USA: Massachusetts Blue Hills Reservation E. F. Williams 1895-8-11
GH: 00630853 Melampyrum lineare Desrousseaux USA: Maine Mount Azizcohos E. F. Williams 2 1903-7-31
GH: 00630873 Melampyrum lineare Desrousseaux USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1899-7-27
GH: 00630872 Melampyrum lineare Desrousseaux USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-15
GH: 00630916 Melampyrum lineare Desrousseaux USA: Maine Mount Agamenticus E. F. Williams 1903-7-17
GH: 00630943 Melampyrum lineare Desrousseaux USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-13
NEBC: 00630951 Melampyrum lineare Desrousseaux USA: New Hampshire Warren: Warren E. F. Williams 1910-7-31
GH: 00630963 Melampyrum lineare Desrousseaux USA: New Hampshire Mount Clinton E. F. Williams 1895-7-18
GH: 00731070 Melampyrum lineare Desrousseaux USA: Massachusetts Lincoln: Lincoln E. F. Williams 1908-8-23
GH: 00731126 Melampyrum lineare Desrousseaux USA: Massachusetts Barnstable Town E. F. Williams 1895-6-16
NEBC: 00731151 Melampyrum lineare Desrousseaux USA: Massachusetts Chilmark: Chilmark E. F. Williams
NEBC: 00731152 Melampyrum lineare Desrousseaux USA: Massachusetts Gosnold: Gosnold E. F. Williams 1911-7-10
GH: 00731167 Melampyrum lineare Desrousseaux USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-7-19
NEBC: 00731267 Orobanche uniflora Linnaeus USA: New Hampshire Rye: Rye E. F. Williams 1 1903-6-14
NEBC: 00731271 Orobanche uniflora Linnaeus USA: New Hampshire Jaffrey: Jaffrey E. F. Williams 1 1899-5-30
NEBC: 00731275 Orobanche uniflora Linnaeus USA: Vermont Willoughby E. F. Williams 1898-6-10
GH: 01178534 Orobanche uniflora Linnaeus USA: Vermont Willoughby E. F. Williams 1 1898-6-10
GH: 01178535 Orobanche uniflora Linnaeus USA: Massachusetts Boxford: Boxford E. F. Williams 1 1906-6-18
GH: 01178539 Orobanche uniflora Linnaeus USA: Massachusetts Newton: Chestnut Hill, Arthusa swamp E. F. Williams 1895-5-30
GH: 01178554 Orobanche uniflora Linnaeus USA: Massachusetts Cummington: Cummington E. F. Williams 1907-7-8
GH: 01178558 Orobanche uniflora Linnaeus USA: Massachusetts Williamstown: Williamstown E. F. Williams 1 1901-6-16
GH: 01178560 Orobanche uniflora Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1908-5-30
GH: 00503132 Pedicularis canadensis Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-6
GH: 00503234 Pedicularis canadensis Linnaeus USA: Massachusetts Williamstown: Williamstown E. F. Williams 1901-6-17
GH: 00503153 Pedicularis canadensis Linnaeus USA: Massachusetts Revere: Revere E. F. Williams 1895-5-26
NEBC: 00503157 Pedicularis canadensis Linnaeus USA: Massachusetts Revere: Revere E. F. Williams 1897-6-12
GH: 00503154 Pedicularis canadensis Linnaeus USA: Massachusetts Wayland: Wayland E. F. Williams 1900-5-20
NEBC: 00503236 Pedicularis canadensis Linnaeus USA: Massachusetts Franklin: Franklin E. F. Williams 1897-6-17
GH: 00679520 Pedicularis furbishiae S. Watson USA: Maine Allagash: Allagash E. F. Williams 1900-7-29
NEBC: 01053181 Pedicularis lanceolata Michaux USA: Connecticut Litchfield: Litchfield E. F. Williams
NEBC: 00679529 Rhinanthus minor Linnaeus USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-7-23
GH: 00679550 Rhinanthus minor Linnaeus USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 1 1899-7-24
GH: 00679644 Rhinanthus minor Linnaeus USA: New Hampshire Mount Washington E. F. Williams 1893-7-31
NEBC: 00679688 Rhinanthus minor groenlandicus (Ostenf.) L. Neum. USA: New Hampshire Sargents E. F. Williams 1893-7-13
NEBC: 00668579 Rhinanthus minor groenlandicus (Ostenf.) L. Neum. USA: New Hampshire Sargents E. F. Williams 1893-7-31
NEBC: 00679693 Rhinanthus minor groenlandicus (Ostenf.) L. Neum. USA: New Hampshire Mount Washington E. F. Williams 1896-8-8
NEBC: 00679700 Rhinanthus minor groenlandicus (Ostenf.) L. Neum. USA: New Hampshire Mount Washington E. F. Williams 1907-8-5
Osmundaceae NEBC: 00739563 Osmunda claytoniana Linnaeus USA: New Hampshire Fitzwilliam: Fitzwilliam E. F. Williams 1894-6-18
GH: 00739598 Osmunda claytoniana Linnaeus USA: Vermont Brandon: Brandon E. F. Williams 1908-5-22
NEBC: 00739627 Osmunda claytoniana Linnaeus USA: Massachusetts Lexington: E. [East] Lexington E. F. Williams 1894-5-27
GH: 00720158 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Maine Mount Katahdin E. F. Williams 1 1900-7-16
NEBC: 00720496 Osmunda regalis spectabilis (Willdenow) A. Gray USA: New Hampshire Fitzwilliam: Fitzwilliam E. F. Williams 1894-6-18
GH: 00720530 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Vermont Brandon: Brandon E. F. Williams 1908-5-21
NEBC: 00720623 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Massachusetts Dedham: Dedham E. F. Williams 1897-6-13
GH: 00772046 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Connecticut Lyme: Lyme E. F. Williams 1905-6-17
GH: 00772070 Osmunda regalis spectabilis (Willdenow) A. Gray USA: Rhode Island Cumberland: Cumberland E. F. Williams 1904-5-29
NEBC: 00677374 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: New Hampshire Fitzwilliam: Fitzwilliam E. F. Williams 1894-6-18
NEBC: 00677390 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: Vermont Willoughby E. F. Williams 1898-6-14
GH: 00677391 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: Vermont Willoughby E. F. Williams 1898-6-14
GH: 00631040 Osmundastrum cinnamomeum (Linnaeus) C. Presl USA: Rhode Island Middletown: Middletown E. F. Williams 1908-5-30
Oxalidaceae NEBC: 01028756 Oxalis dillenii Jacquin USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-23
NEBC: 01028757 Oxalis dillenii Jacquin USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-21
NEBC: 01028778 Oxalis dillenii Jacquin USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-5
NEBC: 01028777 Oxalis dillenii Jacquin USA: Rhode Island Portsmouth: Portsmouth E. F. Williams 1911-6-18
NEBC: 01028779 Oxalis dillenii Jacquin USA: Rhode Island Middletown: Middletown E. F. Williams 1911-6-17
GH: 01028800 Oxalis dillenii Jacquin USA: Connecticut Lyme: Lyme E. F. Williams 1905-6-17
GH: 00100455 Oxalis dillenii dillenii USA: New Hampshire Alstead: E. F. Williams 1901-7-27
NEBC: 00282798 Oxalis dillenii dillenii USA: New Hampshire Alstead: E. F. Williams 1901-7-27
NEBC: 00833039 Oxalis florida Salisbury USA: Rhode Island Cumberland: Cumberland E. F. Williams 1904-5-29
NEBC: 00833075 Oxalis montana Rafinesque USA: Maine Mount Katahdin E. F. Williams 1 1900-7-16
GH: 00833162 Oxalis montana Rafinesque USA: New Hampshire Warren: Warren E. F. Williams 1908-7-21
GH: 01071268 Oxalis montana Rafinesque USA: Vermont Willoughby E. F. Williams 1896-7-24
GH: 01071267 Oxalis montana Rafinesque USA: Vermont Willoughby E. F. Williams 1896-7-19
NEBC: 01071270 Oxalis montana Rafinesque USA: Vermont Willoughby E. F. Williams 1896-7-19
GH: 01071282 Oxalis montana Rafinesque USA: Vermont Hancock: Hancock E. F. Williams 1908-7-7
GH: 01071313 Oxalis montana Rafinesque USA: Massachusetts Ashfield: Ashfield E. F. Williams 1907-7-8
NEBC: 01071335 Oxalis montana Rafinesque USA: Massachusetts Mount Greylock E. F. Williams 1901-6-16
GH: 00100455 Oxalis stricta Linnaeus USA: New Hampshire Alstead: E. F. Williams 1901-7-27
NEBC: 00282798 Oxalis stricta Linnaeus USA: New Hampshire Alstead: E. F. Williams 1901-7-27
NEBC: 01071406 Oxalis stricta Linnaeus USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1910-8-5
NEBC: 00833713 Oxalis stricta Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
GH: 00833734 Oxalis stricta Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-7
GH: 00833737 Oxalis stricta Linnaeus USA: New Hampshire Warren: Warren E. F. Williams 1907-7-27
GH: 00833787 Oxalis stricta Linnaeus USA: Vermont Ripton: Ripton E. F. Williams 1908-7-11
NEBC: 01013410 Oxalis stricta Linnaeus USA: Massachusetts Tewksbury: Tewksbury E. F. Williams 1902-9-1
NEBC: 01013415 Oxalis stricta Linnaeus USA: Massachusetts Woburn: Woburn E. F. Williams 1896-5-30
NEBC: 01013433 Oxalis stricta Linnaeus USA: Massachusetts Milton: Milton E. F. Williams 1900-6-26
GH: 01067456 Oxalis stricta Linnaeus USA: Rhode Island Rumford E. F. Williams 1 1903-9-6
GH: 00100455 Oxalis stricta piletocarpa Wiegand USA: New Hampshire Alstead: E. F. Williams 1901-7-27
NEBC: 00282798 Oxalis stricta piletocarpa Wiegand USA: New Hampshire Alstead: E. F. Williams 1901-7-27
NEBC: 00669723 Oxalis violacea Linnaeus USA: Connecticut Stratford: Stratford E. F. Williams 1901-6-9
Papaveraceae GH: 00348221 Capnoides sempervirens (Linnaeus) Borkhausen USA: Massachusetts "Dome", Blue Hills Reserv. E. F. Williams 1895-9-2
NEBC: 00348223 Capnoides sempervirens (Linnaeus) Borkhausen USA: Massachusetts Blue Hills Reserv. E. F. Williams 1895-6-9
GH: 00348221 Corydalis glauca Pursh USA: Massachusetts "Dome", Blue Hills Reserv. E. F. Williams 1895-9-2
NEBC: 00348223 Corydalis glauca Pursh USA: Massachusetts Blue Hills Reserv. E. F. Williams 1895-6-9
GH: 00348221 Corydalis sempervirens (Linnaeus) Persoon USA: Massachusetts "Dome", Blue Hills Reserv. E. F. Williams 1895-9-2
NEBC: 00348223 Corydalis sempervirens (Linnaeus) Persoon USA: Massachusetts Blue Hills Reserv. E. F. Williams 1895-6-9
GH: 00722076 Corydalis sempervirens (Linnaeus) Persoon USA: Massachusetts Chestnut Hill [Boston, Brookline, Newton] E. F. Williams 1895-5-30
GH: 00669949 Corydalis sempervirens (Linnaeus) Persoon USA: Massachusetts Greenfield Town E. F. Williams 1910-6-17
GH: 00722135 Dicentra canadensis (Goldie) Walpers USA: Vermont Leicester: Leicester E. F. Williams 1908-5-22
GH: 00660013 Dicentra cucullaria (Linnaeus) Bernhardi USA: New Hampshire Troy: Troy E. F. Williams 1 1899-5-30
GH: 00660034 Dicentra cucullaria (Linnaeus) Bernhardi USA: Vermont Leicester: Leicester E. F. Williams 1908-5-22
GH: 01014009 Fumaria officinalis Linnaeus USA: Maine Little Cranberry Island E. F. Williams 1 1897-7-17
GH: 01014008 Fumaria officinalis Linnaeus USA: Maine Great Cranberry Island E. F. Williams 2 1897-7-17
NEBC: 01014010 Fumaria officinalis Linnaeus USA: Maine Great Cranberry Island E. F. Williams 1897-7-17
GH: 00759522 Papaver rhoeas Linnaeus USA: Maine Van Buren: Van Buren E. F. Williams 1901-8-13
NEBC: 00583991 Sanguinaria canadensis Linnaeus USA: Massachusetts Canton: Canton E. F. Williams 1895-5-5
GH: 00583925 Sanguinaria canadensis Linnaeus USA: Vermont Willoughby E. F. Williams 1898-6-15
GH: 00583910 Sanguinaria canadensis Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-6
NEBC: 00583926 Sanguinaria canadensis Linnaeus USA: Vermont Willoughby E. F. Williams 1898-6-15
Parmeliaceae NEBC: 00436136 Cetraria laevigata Rassadina USA: New Hampshire Mt. Washington: [data not captured] E. F. Williams 1895-7-10
NEBC: 00436136 Cetrariella delisei (Bory ex Schaerer) Kärnefelt & A. Thell USA: New Hampshire Mt. Washington: [data not captured] E. F. Williams 1895-7-10
NEBC: 00446952 Parmelia saxatilis (Linnaeus) Acharius USA: New Hampshire [data not captured] E. F. Williams 1896-8-14
NEBC: 00446953 Parmelia saxatilis (Linnaeus) Acharius USA: New Hampshire Randolph: [no additional data] E. F. Williams 1896-8-14
NEBC: 00079136 Usnea trichodea Acharius USA: Massachusetts Wareham: [data not captured] E. F. Williams 1895-3-31
Parnassiaceae GH: 01057005 Parnassia glauca Rafinesque USA: Maine Allagash River E. F. Williams 1900-7-28
GH: 01057008 Parnassia glauca Rafinesque USA: Maine Fort Fairfield: Fort Fairfield E. F. Williams 1901-8-15
GH: 01057009 Parnassia glauca Rafinesque USA: Maine Fort Kent: Fort Kent E. F. Williams 1901-8-10
GH: 01057034 Parnassia glauca Rafinesque USA: Vermont Willoughby E. F. Williams 1&2 1894-7-30
GH: 01074003 Parnassia glauca Rafinesque USA: Vermont Willoughby E. F. Williams 3 1894-7-25
NEBC: 01078895 Parnassia glauca Rafinesque USA: Vermont Willoughby E. F. Williams 1894-7-30
NEBC: 01078896 Parnassia glauca Rafinesque USA: Massachusetts Framingham: Framingham, S. [south] of town E. F. Williams 1893-8-13
GH: 01078936 Parnassia glauca Rafinesque USA: Rhode Island Lincoln: Lincoln E. F. Williams 1910-10-2
Penthoraceae GH: 01028461 Penthorum sedoides Linnaeus USA: New Hampshire Hampton: Hampton E. F. Williams 1901-9-2
NEBC: 01028514 Penthorum sedoides Linnaeus USA: Massachusetts Waltham: Waltham, near Hardys Pond E. F. Williams 1893-9-24
NEBC: 01028517 Penthorum sedoides Linnaeus USA: Massachusetts Weston: Weston, below N. side Doublet Hill E. F. Williams 1894-10-7
NEBC: 01028518 Penthorum sedoides Linnaeus USA: Massachusetts Winchester: Winchester, Winter Pond E. F. Williams 1901-10-20
GH: 01028529 Penthorum sedoides Linnaeus USA: Massachusetts Scituate: Scituate E. F. Williams 1 1899-8-13
GH: 01067000 Penthorum sedoides Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-3
Phrymaceae GH: 00664669 Phryma leptostachya Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-13
GH: 00664679 Phryma leptostachya Linnaeus USA: New Hampshire Alstead: Alstead E. F. Williams 1901-7-27
GH: 00664701 Phryma leptostachya Linnaeus USA: Vermont East Middlebury E. F. Williams 1908-7-14
GH: 00664706 Phryma leptostachya Linnaeus USA: Vermont Norwich: Norwich E. F. Williams 1910-7-8
GH: 00664720 Phryma leptostachya Linnaeus USA: Massachusetts Boxford: Boxford E. F. Williams 1899-8-8
NEBC: 00664721 Phryma leptostachya Linnaeus USA: Massachusetts Georgetown: Georgetown E. F. Williams 1906-7-14
GH: 00664722 Phryma leptostachya Linnaeus USA: Massachusetts Newbury: Newbury E. F. Williams 1899-8-7
NEBC: 00664732 Phryma leptostachya Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1895-8-11
GH: 00664737 Phryma leptostachya Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-7-19
Phytolaccaceae GH: 00755233 Phytolacca americana Linnaeus USA: Massachusetts Acton: South Acton E. F. Williams 1908-9-6
NEBC: 00755252 Phytolacca americana Linnaeus USA: Massachusetts Weston: Weston, Doublet hill E. F. Williams 1895-9-29
NEBC: 00755273 Phytolacca americana Linnaeus USA: Massachusetts Norwood: Norwood E. F. Williams 1895-9-15
GH: 00755304 Phytolacca americana Linnaeus USA: Massachusetts East Charlemont E. F. Williams 1909-8-4
GH: 00755317 Phytolacca americana Linnaeus USA: Rhode Island Lincoln: Lincoln E. F. Williams 1910-10-2
Pinaceae NEBC: 00551935 Abies balsamea (Linnaeus) Miller USA: Maine Mt. Katahdin E. F. Williams 1900-7-11
GH: 00551972 Abies balsamea (Linnaeus) Miller USA: New Hampshire Sargents E. F. Williams 1895-7-8
GH: 00577980 Abies balsamea (Linnaeus) Miller USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-30
NEBC: 00551988 Abies balsamea (Linnaeus) Miller USA: New Hampshire Mount Washington E. F. Williams 1898-6-24
NEBC: 00551991 Abies balsamea (Linnaeus) Miller USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-30
GH: 00576345 Abies balsamea (Linnaeus) Miller USA: Vermont Westmore: Westmore E. F. Williams 1898-6-15
GH: 00576379 Abies balsamea (Linnaeus) Miller USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-2
GH: 00576381 Abies balsamea (Linnaeus) Miller USA: Massachusetts Heath: Heath E. F. Williams 1909-7-17
NEBC: 00576415 Abies balsamea phanerolepis Fernald USA: Vermont Willoughby E. F. Williams 1898-6-15
NEBC: 00576416 Abies balsamea phanerolepis Fernald USA: Vermont Mt. Mansfield E. F. Williams 1897-7-7
GH: 00576426 Larix decidua Miller USA: Massachusetts Canton: Canton E. F. Williams 1899-4-19
GH: 00230695 Larix laricina (Du Roi) Koch USA: New Hampshire Errol: E. F. Williams 1895-7-26
GH: 00230703 Larix laricina (Du Roi) Koch USA: New Hampshire Mount Washington, Cape Horn E. F. Williams 1903-7-23
GH: 00230716 Larix laricina (Du Roi) Koch USA: New Hampshire Randolph: Back of Ravine House E. F. Williams 1897-7-30
GH: 00230717 Larix laricina (Du Roi) Koch USA: New Hampshire Rindge: West Rindge E. F. Williams 1898-5-29
NEBC: 00230749 Larix laricina (Du Roi) Koch USA: New Hampshire Rindge: West Rindge E. F. Williams 1898-5-29
NEBC: 00230759 Larix laricina (Du Roi) Koch USA: Vermont Willoughby E. F. Williams 1898-6-12
GH: 00230770 Larix laricina (Du Roi) Koch USA: Vermont Ripton: Bread Loaf Inn E. F. Williams 1908-7-3
NEBC: 00230787 Larix laricina (Du Roi) Koch USA: Massachusetts Lincoln: E. F. Williams 1908-8-23
GH: 00230827 Larix laricina (Du Roi) Koch USA: Massachusetts West Stockbridge: E. F. Williams 1910-4-10
GH: 00576447 Picea abies (Linnaeus) H. Karsten USA: Massachusetts Medford: West Medford, Brooks place E. F. Williams 1 1898-4-30
NEBC: 00660973 Picea glauca (Moench) Voss USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-12
NEBC: 00660974 Picea glauca (Moench) Voss USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 1897-7-17
GH: 00715280 Picea glauca (Moench) Voss USA: New Hampshire Errol: Errol E. F. Williams 1895-7-26
GH: 00774772 Picea glauca (Moench) Voss USA: Vermont Barton: Barton E. F. Williams 2 1898-6-16
GH: 00774773 Picea glauca (Moench) Voss USA: Vermont Willoughby E. F. Williams 1 1898-6-9
NEBC: 00230890 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: Maine Mount Desert (Hancock County): Jordan Mounta... E. F. Williams 1897-7-16
NEBC: 00230895 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: Maine Cranberry Isles: Little Cranberry Island E. F. Williams 1899-7-24
A: 00230929 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Mount Washington, Tuckermans Ravine near the... E. F. Williams 1897-7-31
GH: 00230930 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Mount Washington, Tuckermans Ravine near the... E. F. Williams 1897-7-31
GH: 00230931 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Sargents Purchase: Mount Washington, Tuckerm... E. F. Williams 1897-7-31
NEBC: 00230932 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Mount Washington, Alpine Garden E. F. Williams 1896-8-7
NEBC: 00230933 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Mount Washington, Alpine Garden E. F. Williams 1898-6-23
NEBC: 00230935 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Sargents Purchase: Mount Washington, Tuckerm... E. F. Williams 1895-7-11
NEBC: 00230936 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: New Hampshire Sargents Purchase: Mount Washington, Tuckerm... E. F. Williams 1897-7-31
GH: 00230973 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: Vermont Ripton: Back of Bread Loaf ? E. F. Williams 1908-7-15
GH: 00230996 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: Massachusetts Tewksbury: Long Pond E. F. Williams 1899-9-8
NEBC: 00231010 Picea mariana (Miller) Brittan, Sterns & Poggenburg USA: Massachusetts Randolph: Hunt farm E. F. Williams 1895-12-1
NEBC: 00629184 Picea rubens Sargent USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-12
NEBC: 00629185 Picea rubens Sargent USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-12
NEBC: 00715642 Picea rubens Sargent USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-30
NEBC: 00715647 Picea rubens Sargent USA: New Hampshire Mount Monadnock E. F. Williams 1898-5-30
NEBC: 00715654 Picea rubens Sargent USA: Vermont Willoughby Mountain E. F. Williams 1898-6-15
GH: 00715657 Picea rubens Sargent USA: Vermont Westmore: Westmore E. F. Williams 1898-6-15
GH: 00629209 Picea rubens Sargent USA: Vermont Stowe: Stowe E. F. Williams 1 1897-7-8
GH: 00774800 Picea rubens Sargent USA: New Hampshire Mount Washington E. F. Williams 2 1897-8-3
GH: 00715676 Picea rubens Sargent USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-3
GH: 00576480 Pinus banksiana Lambert USA: Maine Mt. Desert E. F. Williams 1 1899-7-18
GH: 00576530 Pinus resinosa Aiton USA: Maine E. F. Williams 1900-7-17
NEBC: 00576556 Pinus resinosa Aiton USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-14
GH: 00576619 Pinus resinosa Aiton USA: New Hampshire Mount Desert E. F. Williams 1897-7-14
NEBC: 00576629 Pinus resinosa Aiton USA: New Hampshire Warren: Warren E. F. Williams 1908-7-24
GH: 00576665 Pinus resinosa Aiton USA: Vermont East Middlebury E. F. Williams 1908-7-14
NEBC: 00774816 Pinus rigida Miller USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1910-8-6
NEBC: 00629743 Pinus rigida Miller USA: Massachusetts Waltham: Waltham E. F. Williams 1897-5-16
NEBC: 00629254 Pinus rigida Miller USA: Massachusetts Waltham: Waltham, near Roberts station [Bran... E. F. Williams 2 1897-5-16
NEBC: 00629255 Pinus rigida Miller USA: Massachusetts Norwood: Norwood E. F. Williams 3 1897-5-31
NEBC: 00629256 Pinus rigida Miller USA: Massachusetts Cape Cod E. F. Williams 1 1897-4-18
NEBC: 00629266 Pinus rigida Miller USA: Massachusetts Revere: Revere E. F. Williams 1897-5-23
NEBC: 00629271 Pinus rigida Miller USA: Massachusetts Dedham: Dedham E. F. Williams 1895-11-10
NEBC: 00299905 Pinus strobus Linnaeus USA: Massachusetts Concord: E. F. Williams 1897-4-25
NEBC: 00299906 Pinus strobus Linnaeus USA: Massachusetts Boston: West Roxbury, Stony Brook Reservatio... E. F. Williams 1897-5-30
NEBC: 00299907 Pinus strobus Linnaeus USA: Massachusetts Norwood: Purgatory Woods E. F. Williams 1897-5-31
GH: 00629420 Pinus strobus Linnaeus USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1910-8-5
GH: 00629441 Pinus strobus Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1 1897-7-30
GH: 00629501 Pinus strobus Linnaeus USA: Vermont Brandon: Brandon E. F. Williams 1908-5-21
NEBC: 00629854 Pinus strobus Linnaeus USA: Massachusetts Dedham: Dedham E. F. Williams 1895-11-10
GH: 00629519 Pinus strobus Linnaeus USA: Massachusetts Lexington: Lexington E. F. Williams 1897-6-6
NEBC: 00576757 Pinus sylvestris Linnaeus USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-6
GH: 00576762 Pinus sylvestris Linnaeus USA: Massachusetts Plymouth: Plymouth E. F. Williams 1910-9-11
GH: 00576780 Pinus sylvestris Linnaeus USA: Rhode Island Newport: Newport E. F. Williams 1919-4-19
NEBC: 00299917 Tsuga canadensis (Linnaeus) Carrière USA: Massachusetts Medford: Middlesex Fells Reserv., Hemlock Po... E. F. Williams 1895-12-21
NEBC: 00628015 Tsuga canadensis (Linnaeus) Carrière USA: Massachusetts Wilmington: Wilmington E. F. Williams 1 1899-5-14
GH: 00628018 Tsuga canadensis (Linnaeus) Carrière USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-5-12
Plantaginaceae GH: 00375664 Callitriche heterophylla Pursh USA: Massachusetts Boston: Outlet Muddy [Turtle] pond, Stony Br... E. F. Williams 1897-5-30
GH: 00745132 Callitriche heterophylla Pursh USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-9-1
GH: 00733993 Callitriche palustris Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-12
NEBC: 00736525 Chelone glabra Linnaeus USA: Maine Rangeley: Rangeley E. F. Williams 1903-8-4
GH: 00736576 Chelone glabra Linnaeus USA: New Hampshire Northumberland: Northumberland E. F. Williams 1906-7-29
GH: 00736579 Chelone glabra Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
NEBC: 00736582 Chelone glabra Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1895-7-31
GH: 00736589 Chelone glabra Linnaeus USA: New Hampshire Benton: Benton E. F. Williams 1907-7-28
NEBC: 00736677 Chelone glabra Linnaeus USA: Massachusetts Walpole: Walpole E. F. Williams 1897-9-26
GH: 00736682 Chelone glabra Linnaeus USA: Massachusetts Scituate: Scituate E. F. Williams 1903-9-7
NEBC: 00736684 Chelone glabra Linnaeus USA: Massachusetts Fall River: Fall River E. F. Williams 1903
GH: 00736733 Chelone glabra Linnaeus USA: Rhode Island Rumford E. F. Williams 1 1903-9-6
NEBC: 00655197 Cymbalaria muralis G. Gaertner USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-24
GH: 00502283 Gratiola aurea Muhlenberg USA: Massachusetts Concord: Concord E. F. Williams 1908-8-9
GH: 00502289 Gratiola aurea Muhlenberg USA: Massachusetts Lincoln: Lincoln, Sandy Pond E. F. Williams 1908-8-23
NEBC: 00502358 Gratiola aurea Muhlenberg USA: Massachusetts Centreville E. F. Williams 1896-9-6
NEBC: 00502465 Gratiola aurea Muhlenberg USA: Massachusetts Wianno: E. F. Williams 1896-9-7
NEBC: 00502469 Gratiola aurea leucantha Bartlett USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-14
GH: 00745279 Gratiola neglecta Torrey USA: New Hampshire Seabrook: Seabrook E. F. Williams 1898-8-7
GH: 00745302 Gratiola neglecta Torrey USA: Massachusetts Woburn: Woburn, Shaker Glen E. F. Williams 1895-9-1
GH: 00685668 Kickxia elatine (Linnaeus) Dumortier USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-5
NEBC: 00685667 Kickxia elatine (Linnaeus) Dumortier USA: Rhode Island Middletown: Middletown E. F. Williams 1911-6-17
NEBC: 00633511 Linaria vulgaris Miller USA: Maine Fort Fairfield: Fort Fairfield E. F. Williams 1901-8-16
GH: 00633565 Linaria vulgaris Miller USA: New Hampshire Newcastle E. F. Williams 1901-9-19
NEBC: 00633626 Linaria vulgaris Miller USA: Massachusetts Boston: Boston, Parker St. E. F. Williams 1896-6-27
NEBC: 00691308 Linaria vulgaris Miller USA: Massachusetts Quincy: Quincy E. F. Williams 1895-8-25
NEBC: 00691363 Linaria vulgaris Miller USA: Rhode Island Tiverton: Tiverton E. F. Williams 1903-9-27
GH: 02000977 Linaria vulgaris Miller USA: New Jersey [data not captured] E. F. Williams 1900-6-19
NEBC: 00729391 Littorella americana Fernald USA: Maine Bradley: Bradley E. F. Williams 1891
NEBC: 00650175 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Massachusetts Waltham: Waltham, Prospect Hill E. F. Williams 1895-10-6
NEBC: 00650199 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Massachusetts Walpole: Walpole E. F. Williams 1896-6-7
NEBC: 00650247 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-20
GH: 00650289 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: Rhode Island Tiverton: Tiverton E. F. Williams 1903-9-27
NEBC: 00729436 Nuttallanthus canadensis (Linnaeus) D. A. Sutton USA: New Hampshire Hampton: Hampton E. F. Williams 1 1902-8-31
GH: 00656332 Penstemon calycosus Small USA: Massachusetts Goshen: Goshen E. F. Williams 1907-7-14
NEBC: 00650330 Penstemon digitalis Nuttall ex Sims USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1894-6-30
NEBC: 00650332 Penstemon digitalis Nuttall ex Sims USA: Maine Mount Vernon: Mount Vernon E. F. Williams 1896-7-10
GH: 00650362 Penstemon digitalis Nuttall ex Sims USA: Vermont Norwich: Norwich E. F. Williams 1910-7-8
GH: 00650393 Penstemon digitalis Nuttall ex Sims USA: Massachusetts Goshen: Goshen E. F. Williams 1907-6-14
GH: 00729515 Penstemon hirsutus (Linnaeus) Willdenow USA: Massachusetts Conway: Conway E. F. Williams 1907-7-5
NEBC: 00729578 Penstemon pallidus Small USA: Massachusetts Norfolk: Norfolk E. F. Williams 1900-6-16
NEBC: 00375818 Plantago aristata Michaux USA: Massachusetts New Road, Chickatawbut, Blue Hills Reservati... E. F. Williams 1895-10-27
NEBC: 00375819 Plantago aristata Michaux USA: Massachusetts New Road, Chickatawbut, Blue Hills Reservati... E. F. Williams 1895-10-27
GH: 00443478 Plantago aristata Michaux USA: Massachusetts Quincy: Chikatawbut hill, Blue Hills Reserv. E. F. Williams 1895-10-27
NEBC: 00592582 Plantago aristata Michaux USA: Massachusetts Barnstable: Barnstable E. F. Williams 1896-7-5
GH: 00592590 Plantago aristata Michaux USA: Massachusetts Barnstable: Barnstable E. F. Williams 1896-7-5
NEBC: 00592594 Plantago aristata Michaux USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-5
GH: 00582081 Plantago lanceolata Linnaeus USA: Vermont Norwich: Norwich E. F. Williams 1910-7-15
NEBC: 00582130 Plantago lanceolata Linnaeus USA: Massachusetts Chestnut Hill [Boston/Brookline/Newton] E. F. Williams 1895-5-30
GH: 00617191 Plantago major Linnaeus USA: Maine Fort Kent: Fort Kent E. F. Williams 1901-8-12
NEBC: 00617287 Plantago major Linnaeus USA: Maine Biddeford: Biddeford E. F. Williams 1899-9-3
GH: 00593656 Plantago major Linnaeus USA: New Hampshire Mount Washington E. F. Williams 1 1901-8-6
GH: 00593669 Plantago major Linnaeus USA: New Hampshire Warren: Warren E. F. Williams 1908-7-21
GH: 00593694 Plantago major Linnaeus USA: Vermont Willoughby E. F. Williams 1896-7-25
GH: 00593703 Plantago major Linnaeus USA: Vermont Ripton: Ripton E. F. Williams 1908-7-17
NEBC: 00617924 Plantago major Linnaeus USA: Massachusetts Milton: Milton E. F. Williams 1895-9-1
GH: 00617997 Plantago major Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-3
GH: 01803132 Plantago maritima juncoides (Lamarck) Hultén Canada: Quebec Province [data not captured] E. F. Williams 1902-8-5
GH: 00650564 Plantago maritima juncoides (Lamarck) A. Gray USA: Maine Cranberry Isles: Cranberry Isles E. F. Williams 1 1897-7-17
GH: 00650673 Plantago maritima juncoides (Lamarck) A. Gray USA: New Hampshire Rye: Rye E. F. Williams 1901-9-19
GH: 00670145 Plantago maritima juncoides (Lamarck) A. Gray USA: Massachusetts Revere: Revere E. F. Williams 1896-7-28
NEBC: 00670170 Plantago maritima juncoides (Lamarck) A. Gray USA: Massachusetts Barnstable Town E. F. Williams 1896-9-6
GH: 00670171 Plantago maritima juncoides (Lamarck) A. Gray USA: Massachusetts Barnstable Town E. F. Williams 1896-9-6
GH: 00670201 Plantago maritima juncoides (Lamarck) A. Gray USA: Rhode Island Tiverton: Tiverton E. F. Williams 1903-9-27
GH: 00670225 Plantago maritima juncoides (Lamarck) A. Gray USA: Connecticut New Haven: New Haven E. F. Williams
NEBC: 00375818 Plantago patagonica aristata (Michaux) A. Gray USA: Massachusetts New Road, Chickatawbut, Blue Hills Reservati... E. F. Williams 1895-10-27
NEBC: 00375819 Plantago patagonica aristata (Michaux) A. Gray USA: Massachusetts New Road, Chickatawbut, Blue Hills Reservati... E. F. Williams 1895-10-27
GH: 00443478 Plantago patagonica aristata (Michaux) A. Gray USA: Massachusetts Quincy: Chikatawbut hill, Blue Hills Reserv. E. F. Williams 1895-10-27
GH: 00670252 Plantago pusilla Nuttall USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-4
NEBC: 00670253 Plantago pusilla Nuttall USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-4
NEBC: 00670254 Plantago pusilla Nuttall USA: Rhode Island Middletown: Middletown E. F. Williams 1911-6-17
GH: 00375715 Plantago rugelii Decaisne USA: Massachusetts Boston: Stony Brook Reservation [Hyde Park/W... E. F. Williams 1896-9-13
GH: 00670307 Plantago rugelii Decaisne USA: New Hampshire Warren: Warren E. F. Williams 1908-7-21
GH: 00670319 Plantago rugelii Decaisne USA: Vermont Ripton: Ripton E. F. Williams 1908-7-17
GH: 00670344 Plantago rugelii Decaisne USA: Massachusetts Weston: Weston, Stony brook, R.R. [Railroad]... E. F. Williams 1895-9-29
NEBC: 00670351 Plantago rugelii Decaisne USA: Massachusetts Boston: Boston, Hazelwood station, W. [West]... E. F. Williams 1896-8-23
NEBC: 00670352 Plantago rugelii Decaisne USA: Massachusetts Boston: Boston, W. [West] Roxbury E. F. Williams 1896-8-23
GH: 00670389 Plantago rugelii Decaisne USA: Rhode Island Rumford E. F. Williams 1903-9-6
GH: 01804182 Plantago virginica Linnaeus USA: New Jersey [data not captured] E. F. Williams 2 1900-6-16
NEBC: 00707012 Veronica americana Schweinitz ex Bentham USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-7-26
NEBC: 00707037 Veronica americana Schweinitz ex Bentham USA: Maine Upton: Upton E. F. Williams 1903-7-29
GH: 00707166 Veronica americana Schweinitz ex Bentham USA: Massachusetts Williamstown: Williamstown E. F. Williams 1901-6-17
GH: 00656517 Veronica arvensis Linnaeus USA: Vermont Sudbury: Sudbury E. F. Williams 1908-5-23
GH: 00656522 Veronica arvensis Linnaeus USA: Vermont Pownal: Pownal E. F. Williams 1901-6-17
NEBC: 00656536 Veronica arvensis Linnaeus USA: Massachusetts Waltham: Waltham, Prospect Hill E. F. Williams 1897-5-16
NEBC: 00656551 Veronica arvensis Linnaeus USA: Massachusetts Milton: Milton E. F. Williams 1 1898-6-5
GH: 00656600 Veronica arvensis Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1908-5-31
NEBC: 00656602 Veronica arvensis Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1911-6-17
GH: 00656624 Veronica arvensis Linnaeus USA: Connecticut East Windsor: East Windsor E. F. Williams 1900-5-30
GH: 01805478 Veronica arvensis Linnaeus USA: New Jersey [data not captured] E. F. Williams 3 1900-6-19
GH: 01805561 Veronica barrelieri Schott ex Roemer & Schultes Canada: Quebec Province [data not captured] E. F. Williams 1902-8-7
GH: 01805566 Veronica beccabunga Linnaeus Canada: Quebec Province [data not captured] E. F. Williams 1902-8-6
GH: 00655330 Veronica latifolia Linnaeus USA: Maine Van Buren: Van Buren E. F. Williams 1901-8-13
GH: 00655350 Veronica longifolia Linnaeus USA: New Hampshire Piermont: Piermont E. F. Williams 1910-7-26
GH: 00655366 Veronica longifolia Linnaeus USA: Massachusetts Georgetown: Georgetown E. F. Williams 1906-8-25
GH: 00655371 Veronica longifolia Linnaeus USA: Massachusetts Boston: Boston, by Back Bay Fens E. F. Williams 1900-8-24
NEBC: 00655544 Veronica officinalis Linnaeus USA: Massachusetts Waltham: Waltham E. F. Williams 1897-6-6
NEBC: 00656850 Veronica officinalis Linnaeus USA: Massachusetts Adams: Adams E. F. Williams
GH: 00656897 Veronica officinalis Linnaeus USA: Connecticut Stratford: Stratford E. F. Williams 1901-6-9
GH: 00561743 Veronica peregrina Linnaeus USA: Vermont Sudbury: Sudbury E. F. Williams 1908-5-23
NEBC: 00561756 Veronica peregrina Linnaeus USA: Massachusetts Revere: Revere, Point of Pines E. F. Williams 1897-5-23
NEBC: 00561757 Veronica peregrina Linnaeus USA: Massachusetts Lincoln: Lexington, Mt. Tabor [Mt. Tabor is ... E. F. Williams 1897-6-6
NEBC: 00561755 Veronica peregrina xalapensis (Kunth) Pennell USA: Massachusetts Winchester: Winchester, Edge, Winter Pond E. F. Williams 1897-5-9
GH: 00561883 Veronica peregrina xalapensis (Kunth) Pennell USA: Rhode Island Providence: Providence E. F. Williams 1904-5-22
GH: 00561837 Veronica peregrina xalapensis (Kunth) Pennell USA: New Hampshire Rye: Rye E. F. Williams 1903-6-14
GH: 00745390 Veronica scutellata Linnaeus USA: Maine Magalloway Plantation: Sunday Cove, Lake Umb... E. F. Williams 1903-8-1
GH: 00745453 Veronica scutellata Linnaeus USA: New Hampshire Dummer: Dummer E. F. Williams 1895-7-29
GH: 00775090 Veronica scutellata Linnaeus USA: Massachusetts Concord: Concord, "Conantum" E. F. Williams 1908-8-9
GH: 00775156 Veronica scutellata Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-3
NEBC: 00375593 Veronica serpyllifolia Linnaeus USA: Massachusetts Canton: Green Lodge E. F. Williams 1896-5-24
NEBC: 00579135 Veronica serpyllifolia Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1896-8-14
GH: 00579147 Veronica serpyllifolia Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-7
GH: 00579148 Veronica serpyllifolia Linnaeus USA: New Hampshire Warren: Warren E. F. Williams 1910-7-22
NEBC: 00579235 Veronica serpyllifolia Linnaeus USA: Massachusetts Boston: Boston, 16 Greenville St. E. F. Williams 1895-5-14
NEBC: 00579224 Veronica serpyllifolia Linnaeus USA: Massachusetts Waltham: Waltham E. F. Williams 1897-5-16
GH: 00579279 Veronica serpyllifolia Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1907-7-9
GH: 00517542 Veronica serpyllifolia Linnaeus USA: Maine Lincoln: Mt. Azicoos E. F. Williams 1903-7-31
GH: 00775187 Veronica wormskjoldii Roemer & Schultes USA: Maine Mount Katahdin E. F. Williams 1 1900-7-9
NEBC: 00775209 Veronica wormskjoldii Roemer & Schultes USA: New Hampshire Mount Washington E. F. Williams 1896-8-8
NEBC: 00775213 Veronica wormskjoldii Roemer & Schultes USA: New Hampshire Mount Washington E. F. Williams 1896-8-8
NEBC: 00775214 Veronica wormskjoldii Roemer & Schultes USA: New Hampshire Mount Washington E. F. Williams 1893-7-11
GH: 01812677 Veronicastrum virginicum (Linnaeus) Farwell USA: New York [data not captured] E. F. Williams 1906-8-12
Platanaceae GH: 00359014 Platanus occidentalis Linnaeus USA: Massachusetts Middlesex Fells Reserv. E. F. Williams 1895-12-21
GH: 00648440 Platanus occidentalis Linnaeus USA: New Hampshire Walpole: Walpole E. F. Williams 1901-7-28
GH: 00648460 Platanus occidentalis Linnaeus USA: Massachusetts Concord: Concord E. F. Williams 1908-8-30
GH: 00648232 Platanus occidentalis Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-8
GH: 00648252 Platanus occidentalis Linnaeus USA: Rhode Island North Kingstown: North Kingstown E. F. Williams 1908-6-17
Plumbaginaceae NEBC: 00729661 Limonium carolinianum (Walter) Britton USA: Maine York: York E. F. Williams 1 1898-7-24
GH: 00729671 Limonium carolinianum (Walter) Britton USA: New Hampshire Rye: Rye E. F. Williams 1 1901-9-19
NEBC: 00729675 Limonium carolinianum (Walter) Britton USA: Massachusetts Ipswich: Ipswich E. F. Williams 1 1899-8-9
GH: 00729680 Limonium carolinianum (Walter) Britton USA: Massachusetts Plum Island E. F. Williams 1899-8-4
NEBC: 00729681 Limonium carolinianum (Walter) Britton USA: Massachusetts Plum Island E. F. Williams 1899-8-4
NEBC: 00729700 Limonium carolinianum (Walter) Britton USA: Massachusetts Revere: Revere E. F. Williams 1896-8-22
NEBC: 00670033 Limonium carolinianum (Walter) Britton USA: Massachusetts Barnstable Town E. F. Williams 1896-9-6
GH: 00670062 Limonium carolinianum (Walter) Britton USA: Rhode Island Tiverton: Tiverton E. F. Williams 1903-9-27
Poaceae NEBC: 00338278 Agrostis alba Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1901-7-4
NEBC: 00274095 Agrostis borealis Hartman USA: New Hampshire Sargents Purchase: Mt. Washington, "Cape Hor... E. F. Williams 1896-8-6
GH: 00622070 Agrostis canina Linnaeus USA: Maine Mt. Desert E. F. Williams 1897-7-16
GH: 00622071 Agrostis canina Linnaeus USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1897-7-16
GH: 00716451 Agrostis canina Linnaeus USA: Rhode Island E. F. Williams
NEBC: 00274095 Agrostis canina alpina Oakes USA: New Hampshire Sargents Purchase: Mt. Washington, "Cape Hor... E. F. Williams 1896-8-6
NEBC: 00622138 Agrostis capillaris Linnaeus USA: Maine Wilson's Mills E. F. Williams 1903-7-30
GH: 00622161 Agrostis capillaris Linnaeus USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1899-7-19
NEBC: 00622162 Agrostis capillaris Linnaeus USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1899-7-19
NEBC: 00622208 Agrostis capillaris Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1896-7-31
GH: 00622210 Agrostis capillaris Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-22
NEBC: 00622211 Agrostis capillaris Linnaeus USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-22
NEBC: 00622219 Agrostis capillaris Linnaeus USA: New Hampshire Mt. Willard E. F. Williams 1894-7-19
GH: 00622270 Agrostis capillaris Linnaeus USA: Massachusetts Framingham: Framingham, Nobscot hill E. F. Williams 1901-7-7
GH: 00622287 Agrostis capillaris Linnaeus USA: Massachusetts Sharon: Sharon E. F. Williams 1894-7-1
GH: 00878059 Agrostis hyemalis (Walter) Britton, Stearn & Poggenburg USA: Massachusetts Barnstable Town E. F. Williams 1895-6-17
NEBC: 00878060 Agrostis hyemalis (Walter) Britton, Stearn & Poggenburg USA: Massachusetts Barnstable Town E. F. Williams 1895-6-17
GH: 00878061 Agrostis hyemalis (Walter) Britton, Stearn & Poggenburg USA: Massachusetts Barnstable Town E. F. Williams 1895-6-17
NEBC: 00274095 Agrostis mertensii Trinius USA: New Hampshire Sargents Purchase: Mt. Washington, "Cape Hor... E. F. Williams 1896-8-6
GH: 00878126 Agrostis mertensii Trinius USA: New Hampshire Mount Clinton E. F. Williams 1895-7-18
NEBC: 00878127 Agrostis mertensii Trinius USA: New Hampshire Mount Clinton E. F. Williams 1895-7-18
NEBC: 00878159 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1896-8-8
NEBC: 00878169 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1895-7-7
NEBC: 00878170 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1893-7-14
NEBC: 00878173 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1896-8-7
NEBC: 00878174 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1895-7-14
NEBC: 00878177 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1896-8-6
NEBC: 00878182 Agrostis mertensii Trinius USA: New Hampshire Mount Washington E. F. Williams 1897-8-3
GH: 01178319 Agrostis mertensii Trinius USA: New Hampshire White Mountains E. F. Williams
GH: 00863967 Agrostis mertensii Trinius USA: Maine "Saddle slide" Mt. Katahdin, Me. E. F. Williams 1900-7-10
NEBC: 00338271 Agrostis perennans (Walter) Tuckerman USA: Massachusetts Boston: Stony Brook Reservation [Hyde Park/W... E. F. Williams 1896-9-13
NEBC: 01178392 Agrostis perennans (Walter) Tuckerman USA: Maine Mount Desert Island E. F. Williams 1897-7-16
GH: 01178482 Agrostis perennans (Walter) Tuckerman USA: Vermont Ripton: Ripton E. F. Williams 1908-7-13
GH: 01175521 Agrostis perennans (Walter) Tuckerman USA: Rhode Island Cumberland: Cumberland E. F. Williams 1903-9-13
GH: 01175626 Agrostis scabra Willdenow USA: Maine Mount Desert Island E. F. Williams 1897-7-16
GH: 01175666 Agrostis scabra Willdenow USA: Vermont Willoughby E. F. Williams 1896-7-26
NEBC: 01175667 Agrostis scabra Willdenow USA: Vermont Willoughby E. F. Williams 1896-7-26
NEBC: 01175668 Agrostis scabra Willdenow USA: Vermont Willoughby E. F. Williams 1896-7-24
NEBC: 01175710 Agrostis scabra Willdenow USA: New Hampshire Mount Willard E. F. Williams 1894-7-19
GH: 01175714 Agrostis scabra Willdenow USA: New Hampshire Warren: Warren E. F. Williams 1910-7-20
GH: 00835064 Agrostis scabra Willdenow USA: Connecticut Hartford: Hartford E. F. Williams 1901-7-16
NEBC: 00338278 Agrostis stolonifera Linnaeus USA: Massachusetts Blue Hills Reservation E. F. Williams 1901-7-4
GH: 01178644 Agrostis stolonifera Linnaeus USA: Maine Fort Kent: Fort Kent E. F. Williams 2 1900-8-1
GH: 01178713 Agrostis stolonifera Linnaeus USA: New Hampshire Errol: Errol E. F. Williams 1895-7-29
GH: 00835082 Agrostis stolonifera Linnaeus USA: Vermont Mount Willoughby E. F. Williams 1896-7-26
GH: 00835153 Agrostis stolonifera Linnaeus USA: Massachusetts Cape Cod E. F. Williams 1 1901-7-14
GH: 00835179 Agrostis stolonifera Linnaeus USA: Rhode Island Providence: Providence E. F. Williams
NEBC: 00835239 Agrostis stolonifera palustris (Hudson) Farwell USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1899-7-22
GH: 00835240 Agrostis stolonifera palustris (Hudson) Farwell USA: Maine Mount Desert Island E. F. Williams 1899-7-16
GH: 00835347 Agrostis stolonifera palustris (Hudson) Farwell USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-5
NEBC: 00835348 Agrostis stolonifera palustris (Hudson) Farwell USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-5
NEBC: 00835349 Agrostis stolonifera palustris (Hudson) Farwell USA: Massachusetts Falmouth: Falmouth E. F. Williams 1911-7-14
NEBC: 00835365 Agrostis stolonifera palustris (Hudson) Farwell USA: Massachusetts Gosnold: Gosnold E. F. Williams 1911-7-10
NEBC: 00835410 Alopecurus aequalis Sobolewsky USA: Maine Madawaska: Madawaska E. F. Williams 1901-8-12
GH: 00835470 Alopecurus aequalis Sobolewsky USA: Massachusetts Winchester: Winchester, Winter Pond E. F. Williams 1901-10-20
NEBC: 00622435 Alopecurus geniculatus Linnaeus USA: Massachusetts Lexington: East Lexington E. F. Williams 1894-5-27
GH: 00622469 Alopecurus geniculatus Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1908-5-30
NEBC: 00622509 Alopecurus pratensis Linnaeus USA: New Hampshire Rye: Rye E. F. Williams 1903-6-14
NEBC: 00622553 Alopecurus pratensis Linnaeus USA: Massachusetts Mansfield: Mansfield E. F. Williams 1894-6-10
GH: 00246119 Ammophila arenaria (Linnaeus) Link USA: New Hampshire Little Harbor - Newcastle E. F. Williams 1901-9-19
NEBC: 00246117 Ammophila arundinacea Host USA: Massachusetts Gloucester: E. F. Williams 1898-8-14
GH: 00246119 Ammophila arundinacea Host USA: New Hampshire Little Harbor - Newcastle E. F. Williams 1901-9-19
NEBC: 00246117 Ammophila breviligulata Fernald USA: Massachusetts Gloucester: E. F. Williams 1898-8-14
GH: 00246119 Ammophila breviligulata Fernald USA: New Hampshire Little Harbor - Newcastle E. F. Williams 1901-9-19
NEBC: 00689765 Ammophila breviligulata Fernald USA: New Hampshire Newcastle E. F. Williams 1901-9-19
NEBC: 00689794 Ammophila breviligulata Fernald USA: Massachusetts North Scituate E. F. Williams 1897-9-6
GH: 00689818 Ammophila breviligulata Fernald USA: Rhode Island Middletown: Middletown E. F. Williams 1908-9-13
NEBC: 00689819 Ammophila breviligulata Fernald USA: Rhode Island Middletown: Middletown E. F. Williams 1908-9-13
NEBC: 00338412 Andropogon gerardi Vitman USA: Massachusetts Blue Hills [Reservation] E. F. Williams 1895-9-22
NEBC: 00764165 Andropogon gerardi Vitman USA: Massachusetts Bourne: Bourne E. F. Williams 1901-9-15
NEBC: 00764166 Andropogon gerardi Vitman USA: Massachusetts Bourne: Bourne E. F. Williams 1901-9-15
GH: 00764167 Andropogon gerardi Vitman USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
GH: 00764222 Andropogon gerardi Vitman USA: Connecticut Wethersfield: Wethersfield E. F. Williams
GH: 00764226 Andropogon gerardi Vitman USA: Rhode Island Lincoln: Lincoln E. F. Williams 1910-10-2
GH: 00635170 Andropogon virginicus Linnaeus USA: Massachusetts Norwood: Norwood E. F. Williams 1895-9-15
NEBC: 00635244 Andropogon virginicus abbreviatus (Hackel) Fernald & Griscom USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
GH: 00635252 Andropogon virginicus abbreviatus (Hackel) Fernald & Griscom USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
GH: 00635270 Andropogon virginicus abbreviatus (Hackel) Fernald & Griscom USA: Massachusetts Nantucket: Nantucket E. F. Williams 1894-9-9
GH: 02411616 Andropogon virginicus abbreviatus (Hackel) Fernald & Griscom USA: New Jersey Middletown: Locust E. F. Williams 1900-9-1
NEBC: 00254352 Anthoxanthum nitens (Weber) Y. Schouten & J. F. Veldkamp USA: Massachusetts Revere: Oak Island E. F. Williams 1895-5-26
GH: 00835609 Anthoxanthum nitens (Weber) Y. Schouten & J. F. Veldkamp USA: New Hampshire Rye: Rye E. F. Williams 1903-6-14
GH: 00622661 Anthoxanthum odoratum Linnaeus USA: New Hampshire Rye: Rye E. F. Williams 1903-6-14
GH: 00622683 Anthoxanthum odoratum Linnaeus USA: Vermont Stowe: Stowe E. F. Williams 1897-7-8
GH: 00622748 Anthoxanthum odoratum Linnaeus USA: Rhode Island Middletown: Middletown E. F. Williams 1908-5-30
GH: 01175245 Aristida dichotoma Michaux USA: New Hampshire Hampton: Hampton E. F. Williams 1901-9-22
NEBC: 01175289 Aristida dichotoma Michaux USA: Massachusetts Tewksbury: Tewksbury E. F. Williams 1899-9-24
GH: 01175294 Aristida dichotoma Michaux USA: Massachusetts Weston: Weston E. F. Williams 1895-9-29
GH: 01175393 Aristida dichotoma Michaux USA: Connecticut Hartford: Hartford E. F. Williams 1900-9-20
NEBC: 00765985 Aristida longespica geniculata (Rafinesque) Fernald USA: Massachusetts Sharon: Sharon E. F. Williams 1899-9-10
NEBC: 00622898 Arrhenatherum elatius (Linnaeus) P. Beauvois ex J. Presl & C. Presl USA: Massachusetts Walpole: Walpole E. F. Williams 1896-6-7
GH: 00622918 Arrhenatherum elatius (Linnaeus) P. Beauvois ex J. Presl & C. Presl USA: Massachusetts East Charlemont E. F. Williams 1909-7-17
GH: 00019481 Asperella hystrix bigelowiana Fernald USA: New Hampshire Hanover: Thin woods by the Conneticut River E. F. Williams 1910-7-13
GH: 00353720 Avena fatua Linnaeus USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
NEBC: 00622948 Avena fatua Linnaeus USA: New Hampshire Warren: Warren E. F. Williams 1908-7-24
GH: 00353720 Avena hybrida Petermann USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
NEBC: 00353721 Avena hybrida Petermann USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
GH: 00353720 Avena sativa Linnaeus USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
NEBC: 00353721 Avena sativa Linnaeus USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
GH: 00622981 Avena sativa Linnaeus USA: Maine Portland: Portland E. F. Williams 1910-8-3
GH: 00609101 Avena sativa Linnaeus USA: New Hampshire Warren: Warren E. F. Williams 1 1908-7-21
GH: 00609109 Avena sativa Linnaeus USA: Vermont Ripton: Ripton E. F. Williams 1908-7-11
NEBC: 00609711 Avena sativa Linnaeus USA: Massachusetts Brookline: Brookline, Buckminster road E. F. Williams 1894-7-3
GH: 00609727 Avena sativa Linnaeus USA: Rhode Island Middleborough E. F. Williams 1909-7-3
GH: 00353720 Avena strigosa Schreber USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
NEBC: 00353721 Avena strigosa Schreber USA: Massachusetts Newburyport: E. F. Williams 1898-7-31
GH: 01175968 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Maine Mount Desert (Hancock County): Mount Desert E. F. Williams 1899-7-25
GH: 01045198 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: New Hampshire Randolph: Randolph E. F. Williams 1894-7-13
NEBC: 01045199 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: New Hampshire Randolph: Randolph E. F. Williams 1894-7-8
GH: 01045249 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Vermont Ripton: Ripton E. F. Williams 1908-7-3
GH: 01045250 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Vermont Hancock: Hancock E. F. Williams 1908-7-7
GH: 01045286 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Massachusetts Holbrook: Holbrook E. F. Williams 1899-6-18
NEBC: 01045288 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Massachusetts Norwood: Norwood E. F. Williams 1897-6-27
GH: 01045315 Brachyelytrum aristosum (Michaux) P. Beauvois ex Branner & Coville USA: Massachusetts Williamsburg: Williamsburg E. F. Williams 1907-7-14
GH: 00863114 Bromus ciliatus Linnaeus USA: New Hampshire Warren: Warren E. F. Williams 1908-7-24
GH: 00880006 Bromus ciliatus Linnaeus USA: Vermont Westmore: Westmore E. F. Williams 1896-7-26
GH: 00880010 Bromus ciliatus Linnaeus USA: Vermont Willoughby Mountain E. F. Williams 1894-7-22
NEBC: 00880011 Bromus ciliatus Linnaeus USA: Vermont Willoughby Mountain E. F. Williams 1894-7-22
NEBC: 00880013 Bromus ciliatus Linnaeus USA: Vermont Westmore: Westmore E. F. Williams 1896-7-26
GH: 00880046 Bromus ciliatus Linnaeus USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-3
GH: 00880050 Bromus ciliatus Linnaeus USA: Massachusetts Heath: Heath E. F. Williams 1909-7-17
GH: 00023240 Bromus ciliatus intonsus Fernald USA: Massachusetts Ashfield: E. F. Williams 1909-8-4
GH: 00609765 Bromus commutatus Schrader USA: Rhode Island Middletown: Middletown E. F. Williams 1909-7-4
NEBC: 00613111 Bromus hordeaceus Linnaeus USA: Massachusetts Barnstable: Barnstable E. F. Williams 1895-6-17
GH: 00613118 Bromus hordeaceus Linnaeus USA: Massachusetts Barnstable: Barnstable E. F. Williams 1895-6-17
GH: 00863133 Bromus kalmii A. Gray USA: Massachusetts Boxford: Boxford E. F. Williams 1906-8-9
GH: 00023240 Bromus ramosus Hudson USA: Massachusetts Ashfield: E. F. Williams 1909-8-4
NEBC: 00880193 Bromus ramosus Hudson USA: Maine Allagash: Allagash E. F. Williams 1900-7-29
NEBC: 00880196 Bromus ramosus Hudson USA: Maine Fort Kent: Fort Kent E. F. Williams 1900-8-1
NEBC: 00865573 Bromus ramosus Hudson USA: New Hampshire Randolph: Randolph E. F. Williams 1897-7-29
GH: 00865581 Bromus ramosus Hudson USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-17
NEBC: 00865586 Bromus ramosus Hudson USA: New Hampshire Warren: Warren E. F. Williams 1908-7-24
GH: 00865609 Bromus ramosus Hudson USA: Vermont Hancock: Hancock E. F. Williams 1908-7-18
GH: 00865612 Bromus ramosus Hudson USA: Vermont Salisbury: Salisbury E. F. Williams 1908-7-14
GH: 00609830 Bromus secalinus Linnaeus USA: Massachusetts Dedham: Dedham E. F. Williams 1897-8-22
NEBC: 00609832 Bromus secalinus Linnaeus USA: Massachusetts Dedham: Dedham E. F. Williams 1897-6-27
NEBC: 00611579 Bromus tectorum Linnaeus USA: Rhode Island Cumberland: Cumberland E. F. Williams 1904-5-15
NEBC: 01045408 Calamagrostis canadensis (Michaux) P. Beauvois USA: Maine Mount Desert Island E. F. Williams 1899-7-28
NEBC: 01178991 Calamagrostis canadensis (Michaux) P. Beauvois USA: New Hampshire Mount Washington E. F. Williams 1891-7-26
NEBC: 00835643 Calamagrostis canadensis (Michaux) P. Beauvois USA: New Hampshire Mount Willard E. F. Williams 1894-7-19
GH: 00835653 Calamagrostis canadensis (Michaux) P. Beauvois USA: New Hampshire Warren: Warren E. F. Williams 1908-7-24
GH: 01045570 Calamagrostis canadensis (Michaux) P. Beauvois USA: Vermont Norwich: Norwich E. F. Williams 1910-7-11
NEBC: 01045116 Calamagrostis canadensis (Michaux) P. Beauvois USA: Massachusetts Dedham: Dedham E. F. Williams 1901-7-21
NEBC: 01045138 Calamagrostis canadensis (Michaux) P. Beauvois USA: Massachusetts Gosnold: Gosnold E. F. Williams 1911-7-10
NEBC: 01045144 Calamagrostis canadensis (Michaux) P. Beauvois USA: Massachusetts Nantucket: Nantucket E. F. Williams 1911-7-29
GH: 00863967 Calamagrostis canadensis (Michaux) P. Beauvois USA: Maine "Saddle slide" Mt. Katahdin, Me. E. F. Williams 1900-7-10
GH: 01045442 Calamagrostis canadensis robusta Vasey USA: Maine St. Francis E. F. Williams 1900-7-30
GH: 01045444 Calamagrostis canadensis robusta Vasey USA: Maine Cumberland: Cumberland E. F. Williams 1900-7-28
NEBC: 01045468 Calamagrostis canadensis robusta Vasey USA: New Hampshire Mount Adams E. F. Williams 1896-8-13
NEBC: 01045473 Calamagrostis canadensis robusta Vasey USA: New Hampshire Mount Moosilauke E. F. Williams 1907-7-19
NEBC: 01045476 Calamagrostis canadensis robusta Vasey USA: New Hampshire Mount Washington E. F. Williams 1895-7-10
NEBC: 01045480 Calamagrostis canadensis robusta Vasey USA: New Hampshire Mount Washington E. F. Williams 1896-8-6
GH: 01045498 Calamagrostis canadensis robusta Vasey USA: New Hampshire Mount Moosilauke E. F. Williams 1908-8-3
NEBC: 00700499 Calamagrostis canadensis macouniana (Vasey) Stebbins USA: Massachusetts Boxford: Boxford E. F. Williams 1899-8-6
NEBC: 00338426 Calamagrostis cinnoides W. P. C. Barton USA: Massachusetts Quincy: near Cedar swamp, Blue HIlls Reserv.... E. F. Williams 1895-8-25
NEBC: 00443532 Calamagrostis cinnoides W. P. C. Barton USA: Massachusetts Quincy: near Cedar swamp, Blue HIlls Reserv.... E. F. Williams 1895-8-25
NEBC: 00443532 Calamagrostis coarctata Eaton USA: Massachusetts Quincy: near Cedar swamp, Blue HIlls Reserv.... E. F. Williams 1895-8-25
NEBC: 00338426 Calamagrostis coarctata Eaton USA: Massachusetts Quincy: near Cedar swamp, Blue HIlls Reserv.... E. F. Williams 1895-8-25
NEBC: 01045608 Calamagrostis coarctata Eaton USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
NEBC: 01045609 Calamagrostis coarctata Eaton USA: Massachusetts Barnstable Town E. F. Williams 1898-9-5
NEBC: 01045651 Calamagrostis coarctata Eaton USA: Connecticut East Windsor: East Windsor E. F. Williams
GH: 00023295 Calamagrostis inexpansa novae-angliae Stebbins USA: Maine Mount Desert (Hancock County): Northeast Har... E. F. Williams 1899-7-19
GH: 00863967 Calamagrostis langsdorfii (Link) Trinius USA: Maine "Saddle slide" Mt. Katahdin, Me. E. F. Williams 1900-7-10
NEBC: 00338426 Calamagrostis nuttalliana Steudel USA: Massachusetts Quincy: near Cedar swamp, Blue HIlls Reserv.... E. F. Williams 1895-8-25
NEBC: 00443532 Calamagrostis nuttalliana Steudel USA: Massachusetts Quincy: near Cedar swamp, Blue HIlls Reserv.... E. F. Williams 1895-8-25
GH: 00835744 Calamagrostis pickeringii A. Gray USA: Massachusetts Wilmington: Wilmington E. F. Williams 1899-6-11
GH: 00863967 Calamagrostis sp. USA: Maine "Saddle slide" Mt. Katahdin, Me. E. F. Williams 1900-7-10
GH: 00023295 Calamagrostis stricta inexpansa (A. Gray) C. W. Greene USA: Maine Mount Desert (Hancock County): Northeast Har... E. F. Williams 1899-7-19
GH: 00722898 Calamagrostis stricta inexpansa (A. Gray) C. W. Greene USA: Maine Mount Desert Island: Mount Desert Island E. F. Williams 1899-7-19
GH: 00722923 Calamagrostis stricta inexpansa (A. Gray) C. W. Greene USA: Vermont Willoughby Mountain E. F. Williams 1894-7-25
NEBC: 00722930 Calamagrostis stricta inexpansa (A. Gray) C. W. Greene USA: Vermont Willoughby E. F. Williams 1894-7-25
GH: 00635548 Cenchrus longispinus (Hackel) Fernald USA: Massachusetts Tewksbury: Tewksbury E. F. Williams 1 1899-9-24
GH: 00635558 Cenchrus longispinus (Hackel) Fernald USA: Massachusetts Dedham: Dedham E. F. Williams 1898-10-2
NEBC: 00635559 Cenchrus longispinus (Hackel) Fernald USA: Massachusetts Dedham: Dedham E. F. Williams 1898-10-2
NEBC: 00878225 Cinna arundinacea Linnaeus USA: Massachusetts Norwood: Norwood E. F. Williams 1894-8-26
NEBC: 00878294 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Maine Fort Kent: Fort Kent E. F. Williams 1901-8-9
GH: 00878295 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Maine Hamlin: Hamlin E. F. Williams 1901-8-14
NEBC: 00878333 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Maine Mount Aziscoos E. F. Williams 1903-7-31
NEBC: 00878398 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: New Hampshire Sargents E. F. Williams 1896-8-8
GH: 00835772 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-17
NEBC: 00835774 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: New Hampshire Mount Moosilauke E. F. Williams 1908-8-3
GH: 00835776 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: New Hampshire Warren: Warren E. F. Williams 1908-7-23
GH: 00835795 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Vermont Hancock: Hancock E. F. Williams 1908-7-5
GH: 00835820 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Massachusetts Ashfield: Ashfield E. F. Williams 1909-8-1
GH: 00338693 Coleataenia rigidula (Bosc ex Nees) LeBlond USA: Massachusetts Milton: Blue Hills Reservn. Houghtons Pond E. F. Williams 1894-8-25
GH: 00609236 Dactylis glomerata Linnaeus USA: New Hampshire Hanover: Hanover E. F. Williams 1910-7-9
NEBC: 00609308 Dactylis glomerata Linnaeus USA: Massachusetts Sharon: Sharon E. F. Williams 1896-6-17
NEBC: 00609313 Dactylis glomerata Linnaeus USA: Massachusetts Marshfield: Marshfield E. F. Williams 1894-6-10
GH: 00609325 Dactylis glomerata Linnaeus USA: Vermont Ripton: Ripton E. F. Williams 1908-7-7
GH: 00609327 Dactylis glomerata Linnaeus USA: Vermont Norwich: Norwich E. F. Williams 1910-7-8
NEBC: 00609342 Dactylis glomerata Linnaeus USA: Rhode Island Providence: Providence E. F. Williams 1904-5-22
GH: 01175442 Danthonia compressa Austin USA: New Hampshire Crawford Notch E. F. Williams 1895-7-15
NEBC: 01174935 Danthonia compressa Austin USA: Massachusetts Norwood: Norwood E. F. Williams 1894-8-26
GH: 01174981 Danthonia compressa Austin USA: Rhode Island North Kingstown: North Kingstown E. F. Williams 1908-6-17
NEBC: 01178120 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: New Hampshire Hart's Location: Hart's Location E. F. Williams 1895-7-15
NEBC: 01178210 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Weston: Weston, Doublet Hill E. F. Williams 1894-10-7
NEBC: 01178211 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Weston: Weston, Doublet Hill E. F. Williams 1894-10-7
NEBC: 01178219 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Woburn: Woburn, near Shaker Glen E. F. Williams 1894-6-24
NEBC: 01178236 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Massachusetts Norwood: Norwood E. F. Williams 1895-6-23
GH: 00878003 Danthonia spicata (Linnaeus) P. Beauvois ex Roemer & Schultes USA: Rhode Island North Kingstown: North Kingstown E. F. Williams 1908-6-17