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

Brown University - Algae
Catalog #: ABRU00004360
F. S. Collins s.n. 09 June 1889
Phormidium fragile Gomont
United States, Massachusetts, Nahant, MA

Michigan State University Algae
Catalog #: MSC0183235
F.S. Collins #s.n. 06 June 1889
Leptolyngbya fragilis (Gomont) Anagnostidis & Komárek
United States, Massachusetts, Essex, Nahant

Miami University - Algae
Catalog #: 000189084
F.S. Collins #s.n. 06 June 1889
Leptolyngbya fragilis (Gomont) Anagnostidis & Komárek
United States, Massachusetts, Essex, Nahant

Yale University Herbarium
Catalog #: YU.094667
Frank Shipley Collins s.n. 09 June 1889
Phormidium fragile Gomont
United States, Massachusetts, Essex, Nahant; Nahant, MA