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

Brown University - Algae
Catalog #: ABRU00003961
Mrs. G. A. Hall s.n.
Heterosiphonia gibbesii (Harvey) Falkenberg
United States, Florida, Key West, FL

Yale University Herbarium
Catalog #: YU.094199
Mrs. G. A. Hall s.n.
Heterosiphonia gibbesii (Harvey) Falkenberg
United States, Florida, Monroe, Key West; Key West

Field Museum of Natural History
Catalog #: C0511601F
Mrs. G. A. Hall #s.n.
Herposiphonia gibbesii
United States, Florida, Monroe, Key West

University of Michigan
Catalog #: 658360
Mrs. G.A. Hall #s.n.
Heterosiphonia gibbesii (Harvey) Falkenberg
United States, Florida, Monroe, Key West

University of Michigan
Catalog #: 658393
Mrs. G.A. Hall #s.n.
Heterosiphonia gibbesii (Harvey) Falkenberg
United States, Florida, Monroe, Key West

Michigan State University Algae
Catalog #: MSC0183026
Mrs. G.A. Hall #s.n.
Heterosiphonia gibbesii (Harvey) Falkenberg
United States, Florida, Monroe, Key West

Miami University - Algae
Catalog #: 000188239
Mrs. G.A. Hall #s.n. 22 August 2015
Heterosiphonia gibbesii (Harvey) Falkenberg
United States, Florida, Monroe, Key West