FH: 00418237 Arthonia caesia (Flotow) Körber USA: Iowa [data not captured] W. A. Weber 1955
FH: 00409694 Candelariella spraguei (Tuckerman) Zahlbruckner USA: Colorado [data not captured] W. A. Weber 1955
FH: 00467930 Parmotrema perlatum (Hudson) M. Choisy USA: Iowa [data not captured] W. A. Weber 1955-9-10
FH: 00468280 Punctelia rudecta (Acharius) Krog USA: Iowa [data not captured] W. A. Weber 1955-9-10
FH: 00479227 Staurothele catalepta (Acharius) Blomberg & Forssell USA: Colorado [data not captured] W. A. Weber 1955-7-17
FH: 00479212 Staurothele clopima (Wahlenberg) Th. Fries USA: Colorado [data not captured] W. A. Weber 1955-7-17
FH: 00479212 Staurothele drummondii (Tuckerman) Tuckerman USA: Colorado [data not captured] W. A. Weber 1955-7-17
FH: 00491425 Thyrea pulvinata (Schaerer) A. Massalongo USA: Colorado [data not captured] W. A. Weber 1955-2-28
FH: 00492988 Umbilicaria phaea Tuckerman USA: Colorado [data not captured] W. A. Weber 1955-11-28
FH: 00405750 Xanthoparmelia conspersa (Ehrhart ex Acharius) Hale USA: Colorado [data not captured] W. A. Weber 1955
FH: 00372229 Xanthoria polycarpa (Hoffmann) Rieber USA: Colorado [data not captured] W. A. Weber 1955
Acarosporaceae FH: 00302452 Acarospora rosulata (Th. Fries) H. Magnusson USA: Colorado cliffs, rimrock of Blue Mesa, 6 mi. S.W. of ... W. A. Weber S 6285 1955-7-27
Amblystegiaceae FH: 00839038 Hygrohypnum luridum (Hedwig) Jennings USA: Colorado [data not captured] W. A. Weber 1955-7-17
Apiaceae GH: 00549679 Cymopterus alpinus A. Gray USA: Colorado 3 mi. N. of Almont on road to Crested Butte W. A. Weber 9379 1955-8-2
GH: 00549679 Oreoxis alpina puberulenta W. A. Weber USA: Colorado 3 mi. N. of Almont on road to Crested Butte W. A. Weber 9379 1955-8-2
GH: 00549679 Oreoxis bakeri J. M. Coulter & Rose USA: Colorado 3 mi. N. of Almont on road to Crested Butte W. A. Weber 9379 1955-8-2
Asteraceae GH: 02352513 Erigeron philadelphicus Linnaeus USA: Colorado meadow 7 mi. east of Gunnison along Tomichi ... W. A. Weber 9155 1955-7-11
Aytoniaceae FH: 00495185 Asterella ludwigii (Schwägrichen) Underwood ex Frye & L. Clark USA: Colorado Gunnison: [data not captured] W. A. Weber 1955
Boraginaceae GH: 01994661 Lappula echinata Gilibert USA: Colorado roadside along Cochetopa Pass Hwy., 4 mi. s.... W. A. Weber 9452 1955-8-10
A: 02059723 Oreocarya bakeri Greene USA: Colorado along main highway, 4 mi. west of Gunnison W. A. Weber 9145 1955-7-9
Brachytheciaceae FH: 00787920 Brachythecium plumosum (Hedwig) Bruch, Schimper & C. Gümbel USA: Colorado [data not captured] W. A. Weber 9120 1955-7-20
FH: 00797572 Eurhynchium pulchellum diversifolium (Schimper) C. E. O. Jensen USA: Colorado [data not captured] W. A. Weber 1955-7-20
Caryophyllaceae GH: 01741733 Arenaria lanuginosa (Michaux) Rohrbach USA: Colorado between Pitkin and Cumberland Pass; 1 mi. ab... W. A. Weber 9150 1955-7-11
GH: 01714131 Moehringia macrophylla (Hooker) Fenzl USA: Colorado trail from Ohio Creek Guard Station to Flore... W. A. Weber 9204 1955-7-16
Cephaloziellaceae FH: 00496614 Cephaloziella byssacea (Roth) Schiffner USA: Colorado [data not captured] W. A. Weber 9022 1955-4-17
Cyperaceae GH: 02370347 Carex hoodii Boott USA: Colorado along East River just below Emerald Lake W. A. Weber 9111 1955-7-13
GH: 02369511 Carex sartwellii Dewey USA: Colorado along Tomichi Creek along Parlin-Gunnison Hi... W. A. Weber 9157 1955-7-11
GH: 01775084 Carex saxatilis Linnaeus USA: Colorado [data not captured] W. A. Weber 9373 1955-8-3
Dicranaceae FH: 00541537 Dicranoweisia cirrata (Hedwig) Lindberg USA: Colorado [data not captured] W. A. Weber 1955-7-27
Fabaceae GH: 02044328 Astragalus eucosmus B. L. Robinson USA: Colorado East River Valley, vicinity of Gothic W. A. Weber 9220 1955-7-17
GH: 02052895 Astragalus microcymbus Barneby USA: Colorado along main highway, 4 mi. west of Gunnison W. A. Weber 9144 1955-7-9
GH: 02048975 Astragalus tenellus clementis (Rydberg) J. F. Macbride USA: Colorado between Pitkin and Cumberland Pass W. A. Weber 9151 1955-7-11
GH: 02085926 Lupinus caudatus argophyllus (A. Gray) L. Ll. Phillips USA: Colorado along East River 2 miles south of Crested Bu... W. A. Weber 9132 1955-7-7
Fabroniaceae FH: 00290795 Fabronia ciliaris (Bridel) Bridel USA: Colorado [data not captured] W. A. Weber 9011 1955-2-28
Fuscideaceae FH: 00478526 Ropalospora chlorantha (Tuckerman) S. Ekman USA: Colorado [data not captured] W. A. Weber 1955-7-20
Geocalycaceae FH: 00497101 Chiloscyphus polyanthos fragilis (Roth) Schiffner USA: Colorado [data not captured] W. A. Weber 1955-7-20
Grimmiaceae FH: 00539430 Coscinodon calyptratus (Drummond) C. E. O. Jensen USA: Colorado [data not captured] W. A. Weber 9017 1955-3-9
FH: 00487642 Grimmia affinis Hornschuch USA: Colorado [data not captured] W. A. Weber 9062 1955-5-22
FH: 00487949 Grimmia plagiopoda Hedwig USA: Colorado [data not captured] W. A. Weber 9016 1955-3-30
FH: 00557920 Grimmia reflexidens Müller Halle USA: Colorado [data not captured] W. A. Weber 1955-7-18
FH: 00836598 Hedwigia ciliata (Hedwig) P. Beauvois USA: Colorado [data not captured] W. A. Weber 9015 1955-3-12
FH: 00899765 Schistidium apocarpum (Hedwig) Bruch & Schimper USA: Colorado [data not captured] W. A. Weber 9122 1955-7-20
Hypnaceae FH: 00840974 Hypnum cupressiforme resupinatum (Taylor) Schimper USA: Colorado [data not captured] W. A. Weber 9060 1955-5-23
Incertae sedis FH: 00419017 Arthothelium spectabile A. Massalongo USA: Iowa [data not captured] W. A. Weber 1955
Jungermanniaceae FH: 00500681 Lophozia incisa (Schrader) Dumortier USA: Colorado [data not captured] W. A. Weber 1955-7-20
Lecanoraceae FH: 00941162 Lecanora alphoplaca (Wahlenberg) Acharius USA: Colorado head of steep ravine along Four-Mile Creek 0... W. A. Weber S 4675 1955-2-28
Leskeaceae FH: 00844142 Leskeella tectorum (A. Braun ex Bridel) I. Hagen USA: Colorado [data not captured] W. A. Weber 1955-7-27
Meesiaceae FH: 00845321 Meesia uliginosa Hedwig USA: Colorado [data not captured] W. A. Weber 1955-7-20
Megasporaceae FH: 00941162 Lobothallia alphoplaca (Wahlenberg) Hafellner USA: Colorado head of steep ravine along Four-Mile Creek 0... W. A. Weber S 4675 1955-2-28
Mniaceae FH: 00900209 Rhizomnium punctatum (Hedwig) T. J. Koponen USA: Colorado [data not captured] W. A. Weber 1955-7-20
Parmeliaceae FH: 00467930 Parmelia perlata (Hudson) Acharius USA: Iowa [data not captured] W. A. Weber 1955-9-10
FH: 00405794 Vulpicida tilesii (Acharius) Mattsson & M. J. Lai USA: Colorado [data not captured] W. A. Weber 1955-7-25
Peltigeraceae FH: 00478832 Solorina crocea (Linnaeus) Acharius USA: Colorado [data not captured] W. A. Weber 1955-7-11
Poaceae GH: 01813541 Bothriochloa barbinodis (Lagasca) Herter USA: Colorado canyon of the Dolores River 20 mi. south of ... W. A. Weber 9526 1955-8-22
Polemoniaceae GH: 01083707 Aliciella pentstemonoides (M. E. Jones) J. M. Porter USA: Colorado rimrock of Blue Mesa, 6 mi. S.W. of Sapinero... W. A. Weber 9356 1955-7-27
Polygonaceae GH: 02007768 Polygonum sawatchense Small USA: Colorado 3 mi. N. of Almont on road to Crested Butte W. A. Weber 9376 1955-8-2
Pottiaceae FH: 00540426 Desmatodon latifolius (Hedwig) Bridel USA: Colorado [data not captured] W. A. Weber 1955
Ranunculaceae GH: 01660215 Delphinium ramosum Rydberg USA: Colorado Cochetopa Park, just south of summit of Coch... W. A. Weber 9418 1955-8-10
GH: 01665875 Ranunculus macauleyi A. Gray USA: Colorado trail from Ohio Creek Guard Station to Flore... W. A. Weber [data not captured] 9208A 1955-7-16
Rosaceae GH: 01588626 Chamaerhodos nuttallii Pickering USA: Colorado Cochetopa Park, just south of summit of Coch... W. A. Weber 9429 1955-8-10
GH: 01587992 Coleogyne ramosissima Torrey USA: Colorado just above Gateway in Dolores River Canyon W. A. Weber 9530 1955-8-22
GH: 01607524 Comarum palustre Linnaeus USA: Colorado trail from Ohio Creek Guard Station to Flore... W. A. Weber [data not captured] 9363 1955-7-16
Rubiaceae GH: 02358595 Galium bifolium S. Watson USA: Colorado East River Valley, vicinity of Gothic W. A. Weber 9098 1955-7-17
Stereocaulaceae FH: 00479587 Stereocaulon glareosum (Savicz) H. Magnusson USA: Colorado [data not captured] W. A. Weber 1955
Theliaceae FH: 00846552 Myurella julacea (Schwägrichen) Schimper USA: Colorado [data not captured] W. A. Weber 1955-8-1
Thrombiaceae FH: 00491414 Thrombium epigaeum (Persoon) Wallroth USA: Colorado [data not captured] W. A. Weber 1955-7-20
Thuidiaceae FH: 00537572 Anomodon rostratus (Hedwig) Schimper USA: Iowa [data not captured] W. A. Weber 1955-9-10
Usneaceae FH: 00476984 Ramalina intermedia (Delise ex Nylander) Nylander USA: Colorado [data not captured] W. A. Weber 1955-4-18
Verrucariaceae FH: 00473475 Placidium lachneum (Acharius) B. de Lesdain USA: Colorado [data not captured] W. A. Weber 1955