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

Academy of Natural Sciences of Drexel University - Lichens
Catalog #: PH00092055
Marshall A. Howe #42 b 12 April 1893
Leptogium tenuissimum (Dickson) Körb.
United States, California, Marin, Mt. Tamalais.

Montana State University Herbarium - Lichen
Catalog #: MONT-L-0003934
Marshall A. Howe #42b 12 April 1893
Leptogium tenuissimum (Dickson) Körb.
United States, California, Marin, Mt. Tamalpais