Collins, Holden & Setchell, Phycoth. Bor.-Amer.
Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]

Brown University
Catalog #: ABRU00003216
J. B. Davy s.n.
Porphyridium cruentum (S.F.Gray) Nägeli
United States, California, Bakersfield, CA

Field Museum of Natural History
Catalog #: C0503900F
J. B. Davy #s.n. 00 April 1899
Porphyridium cruentum (S.F.Gray) Nägeli
United States, California, Kern, Bakersfield

Michigan State University
Catalog #: MSC0184135
J.B. Davy #s.n. 00 October 1896
Porphyridium purpureum (Bory de Saint-Vincent) K.M.Drew & R.Ross
United States, California, Kern, Bakersfield

Miami University
Catalog #: 000187122
J.B. Davy #s.n. 00 October 1896
Porphyridium cruentum (S.F.Gray) Nägeli
United States, California, Kern, Bakersfield

Yale University Herbarium
Catalog #: YU.091667
Joseph Burtt Davy s.n. 00 October 1896
Porphyridium cruentum (S.F.Gray) Nägeli
United States, California, Bakersfield; Bakersfield, CA