Cummings, Williams & Seymour, Dec. N. Amer. Lich. [Wellesley (Massachusetts)]
Clara Eaton Cummings, Thomas Albert Williams & Arthur Bliss Seymour [151-360]
IndExs #826153814

Yale University Herbarium, Peabody Museum of Natural History
Catalog #: YU.236555
urn:uuid:8617BC6D-8F7D-42A1-9D4D-8CD40C36197E
Thomas A. Williams s.n. 00 June 1897
Collema ryssoleum (Tuck.) A. Schneider
United States, Maryland, Prince George's, Sligo Creek

Yale University Herbarium, Peabody Museum of Natural History
Catalog #: YU.236556
urn:uuid:375C838F-8702-4F05-AE13-FB980010C3AD
Thomas A. Williams s.n. 00 June 1897
Collema ryssoleum (Tuck.) A. Schneider
United States, Maryland, Prince George's, Sligo Creek

University of Nebraska State Museum, C.E. Bessey Herbarium - Lichens
Catalog #: NEB00028893
Thomas A. Williams #s.n. 00 June 1897
Collema ryssoleum (Tuck.) A. Schneider
USA, Maryland, Sligo Creek.

University of Nebraska State Museum, C.E. Bessey Herbarium - Lichens
Catalog #: NEB00028895
Thomas A. Williams #s.n. 00 June 1897
Collema ryssoleum (Tuck.) A. Schneider
USA, Maryland, Sligo Creek.

University of Wisconsin - Madison
Catalog #: WIS-L-0087752
Thomas A. Williams #s.n. 00 June 1897
Collema ryssoleum (Tuck.) A. Schneider
United States, Maryland, Prince George's, Sligo Creek

Willard Sherman Turrell Herbarium, Miami University
Catalog #: 000157216
Williams, Thomas A. #s.n. 00 June 1897
Collema ryssoleum (Tuck.) A. Schneider
United States, Maryland, Montgomery, Sligo Creek

Duke University Herbarium Lichen Collection
Catalog #: 221970
94438955-1278-435c-912f-2cf7c4a02b30
Williams, Thomas, A. s.n. 00 June 1897
United States, Maryland, Montgomery Co., Sligo Creek [Prince Georeges or Montgomery County?]