Petrak, Crypt. Exs.
Petrak [3201 - 4700]

Field Museum of Natural History
Catalog #: C1061965F
179ab969-3bb4-4854-b677-8e1a68719071
W. A. Webber #s.n. 29 July 1956
Ptilium crista-castrensis (Hedw.) De Not.
United States, Alaska, Denali, Mt. McKinley Nat. Park, sumpfiges S. W. Ufer des Wonder Lake (SW marshy shores of Wonder Lake)

University of Colorado, Museum of Natural History Herbarium Bryophyte Collection
Catalog #: COLO-B-0046584
W. A. Weber #s.n. 29 July 1956
Ptilium crista-castrensis (Hedw.) De Not.
United States, Alaska, Mt. McKinley Nat. Park, sumpfiges S. W. Ufer des Wonder Lake