Apiaceae NEBC: 01036020 Coelopleurum lucidum (Linnaeus) Fernald USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-8-5
NEBC: 01051594 Hydrocotyle umbellata Michaux USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan 1886-8-30
NEBC: 01024214 Hydrocotyle umbellata Michaux USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan 1886-8-30
NEBC: 01024215 Hydrocotyle umbellata Michaux USA: Massachusetts Groton: Groton, Baddacook Pond C. W. Swan 1886-8-30
NEBC: 01051748 Ligusticum scoticum Linnaeus USA: Massachusetts Nahant: Nahant C. W. Swan 1886-8-10
NEBC: 00587069 Zizia aurea (Linnaeus) W. D. J. Koch USA: Massachusetts Dunstable: Dunstable C. W. Swan 1886-8-20
Asteraceae NEBC: 01071632 Hieracium venosum Linnaeus USA: Massachusetts Nantucket: Nantucket C. W. Swan 1886
Caprifoliaceae NEBC: 00685322 Viburnum opulus trilobum (Marsh.) Clausen USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-8
Cistaceae GH: 00757221 Lechea maritima Leggett ex Britton USA: Massachusetts Boston: Boston C. W. Swan 1886-9-15
NEBC: 00757935 Lechea tenuifolia Michaux USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-7-30
NEBC: 00757946 Lechea tenuifolia Michaux USA: Massachusetts Boston: Boston C. W. Swan 1886-10-5
Cyperaceae NEBC: 01030400 Carex laxiflora Lamarck USA: Massachusetts Cambridge: Cambridge, Fresh Pond C. W. Swan 1886-6-6
NEBC: 00895885 Carex oligosperma Michaux USA: Massachusetts Bedford: Bedford C. W. Swan 1886-7-25
NEBC: 01043190 Carex viridula Michaux USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-8-5
NEBC: 01061595 Cyperus lupulinus macilentus (Fernald) Marcks USA: Massachusetts Boston: Boston C. W. Swan 1886-9-30
NEBC: 00339559 Eleocharis acicularis (Linnaeus) Roemer & Schultes USA: Massachusetts Westford: Long Sought For Pond C. W. Swan 1886-9-1
NEBC: 00339558 Eleocharis acicularis (Linnaeus) Roemer & Schultes USA: Massachusetts Groton: Groton,k Paddicook [Baddacook] Pond C. W. Swan 1886-8-30
NEBC: 01048510 Eleocharis palustris (Linnaeus) Roemer & Schultes USA: Massachusetts Nantucket: Nantucket C. W. Swan 1886
NEBC: 01048722 Eleocharis robbinsii Oakes USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00802907 Rhynchospora fusca (Linnaeus) W. T. Aiton USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00895418 Scirpus pungens Vahl USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-7-23
NEBC: 01161111 Scirpus subterminalis Torrey USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
Fabaceae NEBC: 00711231 Desmodium obtusum (Muhlenberg ex Willdenow) de Candolle USA: Massachusetts Groton: Groton C. W. Swan 1886-7-20
NEBC: 00754021 Lespedeza stuevei Nuttall USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-8-30
NEBC: 00639638 Lespedeza violacea (Linnaeus) Persoon USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-7-30
NEBC: 00739913 Strophostyles helvola (Linnaeus) Elliott USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-9-6
Haloragaceae NEBC: 01071065 Myriophyllum tenellum Bigelow USA: Massachusetts Westford: Westford, Long-sought-for Pond C. W. Swan 1886-9-1
Iridaceae NEBC: 01044622 Sisyrinchium atlanticum E. P. Bicknell USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-7-9
Lentibulariaceae NEBC: 00731732 Utricularia intermedia Hayne USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00731744 Utricularia intermedia Hayne USA: Massachusetts Westford: Westford, Long Sough For Pond C. W. Swan 1886-9-1
Liliaceae NEBC: 01030962 Streptopus lanceolatus (Aiton) Reveal USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-27
Linaceae NEBC: 00741220 Linum intercursum E. P. Bicknell USA: Massachusetts Nantucket: Nantucket C. W. Swan 1886
Lythraceae NEBC: 00717988 Rotala ramosior (Linnaeus) Koehne USA: Massachusetts Winchester: Winchester, Winter Pond C. W. Swan 1886-7-28
Malvaceae NEBC: 00751305 Hibiscus trionum Linnaeus USA: Massachusetts Boston: Boston C. W. Swan 1886-9-14
Pinaceae NEBC: 00576364 Abies balsamea (Linnaeus) Miller USA: Massachusetts C. W. Swan 2664 1886-8-26
NEBC: 00576366 Abies balsamea (Linnaeus) Miller USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-27
Plantaginaceae NEBC: 00685683 Plantago coronopus Linnaeus USA: Massachusetts Boston: Boston C. W. Swan 1886-9-14
Poaceae NEBC: 00835815 Cinna latifolia (Treviranus ex Göppert) Grisebach USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-27
NEBC: 00879772 Danthonia allenii Austin USA: Massachusetts Pepperell: Pepperell C. W. Swan 1886-8-30
NEBC: 01174929 Danthonia compressa Austin USA: Massachusetts Ashby to W. Townsend C. W. Swan 1886-8-28
NEBC: 01174930 Danthonia compressa Austin USA: Massachusetts Ashby: Ashby C. W. Swan 1886-8-28
NEBC: 00875613 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Boston: Boston C. W. Swan 1886-9-30
NEBC: 00875614 Dichanthelium sphaerocarpon (Elliott) Gould USA: Massachusetts Boston: Boston C. W. Swan 1886-9-29
NEBC: 00613778 Holcus lanatus Linnaeus USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1886-7-9
Ranunculaceae NEBC: 01034571 Anemone canadensis Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-5-24
NEBC: 00692478 Ranunculus flammula Linnaeus USA: Massachusetts Groton: Groton, Baddacook P. [Pond] C. W. Swan 1886-8-31
Rosaceae NEBC: 00565633 Geum rivale Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-6-19
NEBC: 00710473 Geum virginianum Linnaeus USA: Massachusetts Swampscott: Swampscott C. W. Swan 1886-7-12
Salicaceae NEBC: 00653929 Salix lucida Muhlenberg USA: Massachusetts Boston: Boston C. W. Swan 1886-5-15
Saxifragaceae NEBC: 00665070 Ribes americanum Miller USA: Massachusetts Marblehead: Marblehead C. W. Swan 1886-8-12
Sparganiaceae NEBC: 00666567 Sparganium fluctuans (Morong) B. L. Robinson USA: Massachusetts Hopkinton: Hopkinton, Whitehall Pond C. W. Swan 1886-9-4
Urticaceae NEBC: 00648125 Laportea canadensis (Linnaeus) Weddell USA: Massachusetts West Townsend to Ashby C. W. Swan 1886-8-28
Xyridaceae NEBC: 01024557 Xyris difformis Chapman USA: Massachusetts Groton: Groton, Flat Pond C. W. Swan 1886-8-29
NEBC: 00875487 Xyris difformis Chapman USA: Massachusetts Groton: Groton, Baddacook P. [Pond] C. W. Swan 1886-8-31
