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

Brown University - Algae
Catalog #: ABRU00004307
F. S. Collins s.n. 15 June 1908
Hapalosiphon fontinalis var. fischeroides Hansgirg
United States, Massachusetts, Eastham, MA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0012358
F. S. Collins #1560 15 June 1908
Hapalosiphon fontinalis var fischeroides
United States, Massachusetts, Barnstable, Eastham

Michigan State University Algae
Catalog #: MSC0182988
F.S. Collins #s.n. 15 June 1908
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, Massachusetts, Barnstable, Eastham

Miami University - Algae
Catalog #: 000189033
F.S. Collins #s.n.
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, Massachusetts, Barnstable, Eastham

Yale University Herbarium
Catalog #: YU.094614
Frank Shipley Collins s.n. 15 June 1908
Hapalosiphon fontinalis var. fischeroides Hansgirg
United States, Massachusetts, Barnstable, Eastham; Eastham, MA