Harvard University Herbaria & Libraries

FH: 00469437 Peltigera aphthosa variolosa (A. Massalongo) J. W. Thomson USA: [data not captured] P. H. Hawkins 1922-7
FH: 00394077 Xanthoria candelaria (Linnaeus) Th. Fries USA: Wyoming [data not captured] P. H. Hawkins 644a 1922-8
Boraginaceae
GH: 02143472 Plagiobothrys scouleri penicillatus (Greene) Cronquist USA: Wyoming Canyon Hotel P. H. Hawkins 1922
Cladoniaceae
FH: 00406223 Cladonia arbuscula (Wallroth) Flotow USA: Wyoming [data not captured] P. H. Hawkins 580a 1922
Cyperaceae
GH: 02368780 Carex douglasii Boott USA: Wyoming Fountain Geyser. Yellowstone National Park P. H. Hawkins 420 1922-7-2
GH: 02369355 Carex praegracilis W. Boott USA: Wyoming Fountain Geyser P. H. Hawkins 421b 1922-7-2
GH: 02369340 Carex praegracilis W. Boott USA: Wyoming Mammoth P. H. Hawkins 176a 1922-6-5
GH: 01774456 Carex rostrata Stokes USA: Wyoming Swan Lake. Yellowstone National Park P. H. Hawkins 564 1922-7-2
Parmeliaceae
FH: 00442787 Letharia columbiana (Nuttall) J. W. Thomson USA: [data not captured] P. H. Hawkins 286d 1922
FH: 00442871 Letharia vulpina (Linnaeus) Hue USA: Wyoming [data not captured] P. H. Hawkins 1922-7
Pottiaceae
FH: 00623125 Bryoerythrophyllum recurvirostrum (Hedwig) P. C. Chen USA: Wyoming [data not captured] P. H. Hawkins 1922-8-22