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 #: 4440394
a7d4e23b-de8a-47a7-b23b-da410f141b2e
s.n.
Collema nigrescens (Huds.) DC.

Montana State University Herbarium - Lichen
Catalog #: MONT-L-0002724
Clara E. Cummings #111 25 August 1895
Graphis scripta var. recta (Humb.) Mudd
United States, New Hampshire, Grafton, Plymouth

Academy of Natural Sciences of Drexel University - Lichens
Catalog #: PH00117449
Clara Eaton Cummings #111 25 August 1895
Graphis scripta var. recta (Humb.) Mudd
United States, New Hampshire, Grafton, Plymouth

University of Michigan Herbarium
Catalog #: 102496
3d0c83d9-d103-4d74-b19f-d14b583a5e46
M. A. Howe #s. n. 00 February 1893
Collema nigrescens (Hudson) DC.
United States, California, no data, Berkley

University of Vermont, Pringle Herbarium, North American lichens
Catalog #: UVMVT017068
M. A. Howe #s.n. 00 February 1893
Synechoblastus nigrescens (Huds.) Trevis.
United States of America, California, Alameda, Berkeley;

Field Museum of Natural History
Catalog #: C0067680F
8c324944-a2f4-40f8-8e62-de8dd0be5dfb
M. A. Howe #s.n. 00 February 1893
Collema nigrescens (Huds.) DC.
U.S.A., California, Alameda, Berkeley; Berkeley

Private Herbarium of T. L. Esslinger Herbarium
Catalog #: 0014445
Marshall A. Howe s.n. 00 February 1893
Collema nigrescens (Hudson) DC.
United States, California, Alameda, Berkeley

University of California Berkeley, University Herbarium
Catalog #: UC1939573
3c1a4d3a-ccfc-4aaf-b0e6-96f78aa08e77
Marshall A. Howe #N. A. L. 123 00 February 1893
Collema nigrescens (Hudson) DC.
United States, California, Alameda, Berkeley

Montana State University Herbarium - Lichen
Catalog #: MONT-L-0002196
Marshall A. Howe #s.n. 00 February 1893
Collema nigrescens (Hudson) DC.
United States, California, Alameda, Berkeley; Berkeley

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0014289
Marshall A. Howe #s.n. 00 February 1893
Collema nigrescens (Hudson) DC.
United States, California, Alameda, Berkeley