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

Brown University - Algae
Catalog #: ABRU00003336
H. T. A. Hus s.n.
Porphyra perforata J.Agardh
United States, California, Land's End, San Francisco, CA

Field Museum of Natural History
Catalog #: C0503674F
H. T. A. Hus #s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco, Land's End, San Francisco

Field Museum of Natural History
Catalog #: C0503722F
H. T. A. Hus #s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco, Land's End, San Francisco.

University of Michigan
Catalog #: 670695
H.T.A. Hus #s.n.
Pyropia perforata (J.Agardh) S.C.Lindstrom
United States, California, San Francisco, Lands End, San Francisco.

University of Michigan
Catalog #: 670714
H.T.A. Hus #s.n.
Pyropia perforata (J.Agardh) S.C.Lindstrom
United States, California, San Francisco, Lands End, San Francisco.

Michigan State University Algae
Catalog #: MSC0184361
H.T.A. Hus #s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco, Land's End, San Francisco

Miami University - Algae
Catalog #: 000187285
H.T.A. Hus #s.n.
Porphyra perforata J.Agardh
United States, California, San Francisco, Lands End, San Francisco.

Yale University Herbarium
Catalog #: YU.091765
Henri Hus s.n.
Porphyra perforata J.Agardh
United States, California, Land's End, San Francisco, CA