Cummings, Williams & Seymour, Lich. Bor.-Amer. [Wellesley (Massachusetts)]Cummings, C.E.; Williams, T.A.; Seymour, A.B. [1-280]
Bell Museum lichens
Catalog (Accession) #: 21823
Cummings, C. s.n.
Lecanora schleicheri (Ach.) Nyl.
United States, California
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