Cummings & Seymour, Dec. N. Amer. Lich.
C.E. Cummings & A.B. Seymour [1 - 150]

Oregon State University Herbarium
Catalog #: 98956
Marshell A. Howe. s.n. 00 February 1893
Collema nigrescens (Huds.) DC.
United States, California, Alameda, Berkeley; Berkeley