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

University of Michigan Herbarium
Catalog #: 111555
cd2b31ed-8d14-437d-b041-562da55f8824
M. A. Howe #s. n. 12 April 1893
Leptogium tenuissimum (Dickson) Körb.
United States, California, Marin, Mt. Tamalpais

University of Vermont, Pringle Herbarium, North American lichens
Catalog #: UVMVT016174
M. A. Howe #s.n. 12 April 1893
Leptogium tenuissimum (Dickson) Körb.
United States of America, California, Marin, Mt. Tamalpais

University of Nebraska State Museum, C.E. Bessey Herbarium - Lichens
Catalog #: NEB00031721
Marshall A. Howe #=N.A.L. 125b 12 April 1893
Leptogium tenuissimum (Dickson) Körb.
USA, California, Marin, Mt. Tamalpais