Cummings, Williams & Seymour, Lich. Bor.-Amer. [Wellesley (Massachusetts)]
Cummings, C.E.; Williams, T.A.; Seymour, A.B. [1-280]
IndExs #238641321

New York Botanical Garden
Catalog #: 4440521
8671ff51-5f76-4d19-856c-092206f58d03
s.n.
Pannaria molybdaea var. cronia (Tuck.)

University of California Berkeley, University Herbarium
Catalog #: UC1939687
a8d39e83-f44a-40b3-b4e9-b73468944231
T. A. Williams s.n. 00 December 1897
Coccocarpia palmicola (Sprengel) Arv. & D. J. Galloway
United States, Maryland, Sligo Creek

University of Michigan Herbarium
Catalog #: 102262
2af104f8-3666-4fff-9a14-dce86beaec41
T. A. Williams #s. n. 00 December 1897
Coccocarpia cronia (Tuck.) Vain.
United States, Maryland, no data, Sligo Creek

University of Vermont, Pringle Herbarium, North American lichens
Catalog #: UVMVT015462
T. A. Williams #s.n. 00 December 1897
Coccocarpia incisa Pers.
United States of America, Maryland, Montgomery, Sligo creek

Field Museum of Natural History
Catalog #: C0065665F
318d0b4e-68d2-4e95-8687-dab4f0220e20
T. A. Williams #s.n. 00 December 1897
Coccocarpia palmicola (Spreng.) Arv. & D. J. Galloway
U.S.A., Maryland, Sligo Creek

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0013951
T.A. Williams #s.n. 00 December 1897
Coccocarpia erythroxyli (Sprengel) Swinscow & Krog
United States, Maryland, Montgomery, Sligo Creek

Academy of Natural Sciences of Drexel University - Lichens
Catalog #: PH00092130
Thomas A. Williams #s.n. 00 November 1895
Lichinella cribellifera (Nyl.) Henssen
United States, Nebraska, Weeping Water

Oregon State University Herbarium
Catalog #: 95422
Thos. A. Williams s.n. 00 December 1897
Coccocarpia palmicola (Spreng.) Arv. & D.J. Galloway
United States, Maryland, Montgomery, Sligo Creek

Montana State University Herbarium - Lichen
Catalog #: MONT-L-0004699
Thos. A. Williams #134 00 November 1895
Thyrea confusa Henssen
United States, Nebraska, Cass, Weeping Water