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

Brown University - Algae
Catalog #: ABRU00003187
F. S. Collins s.n. 12 January 1899
Schizothrix calcicola (C.Agardh) Gomont ex Gomont
United States, Massachusetts, Botanic Garden, Cambridge, MA

Michigan State University Algae
Catalog #: MSC0184608
F.S. Collins #s.n. 12 January 1899
Schizothrix calcicola (C.Agardh) Gomont ex Gomont
United States, Massachusetts, Middlesex, Botanic Garden, Cambridge

Miami University - Algae
Catalog #: 000187095
F.S. Collins #s.n. 12 January 1899
Schizothrix calcicola (C.Agardh) Gomont ex Gomont
United States, Massachusetts, Middlesex, Botanic Garden, Cambridge

Yale University Herbarium
Catalog #: YU.091640
Frank Shipley Collins s.n. 12 January 1899
Schizothrix calcicola (C.Agardh) Gomont ex Gomont
United States, Massachusetts, Middlesex, Cambridge; Botanic Garden, Cambridge, MA