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

Brown University - Algae
Catalog #: ABRU00003701
F. S. Collins s.n. 17 June 1902
Lyngbya subtilis Holden
United States, Massachusetts, Marblehead Neck, MA

Michigan State University Algae
Catalog #: MSC0184000
F.S. Collins #s.n. 17 June 1902
Phormidium holdenii (Forti) L.H.Z.Branco, C.L.Sant'Anna, M.T.P.Azevedo & L.Sormus
United States, Massachusetts, Middlesex, Marblehead Neck, Marblehead

Miami University - Algae
Catalog #: 000187984
F.S. Collins #s.n. 17 June 1902
Lyngbya subtilis Holden
United States, Massachusetts, Middlesex, Marblehead Neck, Marblehead

Yale University Herbarium
Catalog #: YU.106591
Frank Shipley Collins s.n. 17 June 1902
Lyngbya subtilis Holden
United States, Massachusetts, Marblehead; Marblehead Neck, MA