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

Brown University - Algae
Catalog #: ABRU00004534
F. S. Collins s.n. 31 August 1911
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, New Hampshire, Carroll, Tamworth, NH

Michigan State University Algae
Catalog #: MSC0182983
F.S. Collins #s.n. 31 August 1911
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, New Hampshire, Carroll, Tamworth

Miami University - Algae
Catalog #: 000189137
F.S. Collins #s.n. 31 August 1911
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, New Hampshire, Carroll, Tamworth

Yale University Herbarium
Catalog #: YU.095005
Frank Shipley Collins s.n. 31 August 1911
Hapalosiphon pumilus Kirchner ex Bornet & Flahault
United States, New Hampshire, Carroll, Tamworth, NH