Harvard University Herbaria & Libraries

FH: 00494264 Verrucaria nigrescens Persoon USA: Illinois [data not captured] W. W. Calkins 1908-11-20
Ditrichaceae
FH: 00515105 Ceratodon purpureus (Hedwig) Bridel USA: Michigan [data not captured] W. W. Calkins 1908-6-15
Lecanoraceae
FH: 00419194 Aspicilia cinerea (Linnaeus) Körber USA: North Dakota [data not captured] W. W. Calkins 1908
Leucobryaceae
FH: 00844336 Leucobryum albidum (Bridel ex P. Beauvois) Lindberg USA: Illinois [data not captured] W. W. Calkins 1908-9-14
FH: 00844592 Leucobryum glaucum (Hedwig) Angstrom USA: Illinois [data not captured] W. W. Calkins 1908-6
Parmeliaceae
FH: 01141620 Usnea cavernosa Tuckerman USA: Oregon Portland: [no additional data] W. W. Calkins 1908-11-10
Polytrichaceae
FH: 00917755 Polytrichastrum ohioense (Renauld & Cardot) G. L. Smith USA: Illinois [data not captured] W. W. Calkins 1908-12
FH: 00917756 Polytrichastrum ohioense (Renauld & Cardot) G. L. Smith USA: Illinois [data not captured] W. W. Calkins 1908-12
FH: 00917764 Polytrichastrum ohioense (Renauld & Cardot) G. L. Smith USA: Illinois [data not captured] W. W. Calkins 1908-9
FH: 00918125 Polytrichum commune Hedwig USA: Illinois [data not captured] W. W. Calkins 1908-5
FH: 00918304 Polytrichum commune perigoniale (Michaux) Hampe USA: Illinois [data not captured] W. W. Calkins 1908-6
Sphagnaceae
FH: 00921666 Sphagnum compactum Lamarck & de Candolle USA: Illinois [data not captured] W. W. Calkins 1908-6
FH: 00923705 Sphagnum nemoreum Scopoli USA: Illinois [data not captured] W. W. Calkins 1908-9