Underwood & Cook, Hepat. Amer.
Underwood, L.M.; Cook, O.F. [1 - 200]

Field Museum of Natural History
Catalog #: C0079542F
56757662-dcca-4728-a8c0-caf5c450422a
M. A. Howe #s.n. 00 April 1894
Porella rivularis (Nees) Pfeiff.
United States, California, Berkeley