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

Brown University
Catalog #: ABRU00003757
F. S. Collins s.n. 17 August 1902
Plectonema battersii Gomont
United States, Massachusetts, Marblehead Neck, MA

Michigan State University
Catalog #: MSC0184216
F.S. Collis #s.n. 17 August 1902
Pseudophormidium battersii (Gomont) Anagnostidis
United States, Massachusetts, Middlesex, Marblehead, MA

Miami University
Catalog #: 000188040
F.S. Collis #s.n. 17 August 1902
Plectonema battersii Gomont
United States, Massachusetts, Middlesex, Marblehead, MA

Yale University Herbarium
Catalog #: YU.106594
Frank Shipley Collins s.n. 17 August 1902
Plectonema battersii Gomont
United States of America, Massachusetts, Marblehead; Marblehead Neck, MA