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

Brown University - Algae
Catalog #: ABRU00004104
F. S. Collins s.n. 16 September 1906
Hormospora purpurea
United States, New Hampshire, Carroll, Tamworth; Lake Chocorua, NH

University of Michigan
Catalog #: 729873
F.S. Collins #s.n. 16 September 1906
Hormospora purpurea
United States, New Hampshire, Carroll, Lake Chocorua

University of Michigan
Catalog #: 729874
F.S. Collins #s.n. 16 September 1906
Hormospora purpurea
United States, New Hampshire, Carroll, Lake Chocorua

Michigan State University Algae
Catalog #: MSC0183042
F.S. Collins #s.n. 16 September 1906
Hormospora purpurea
United States, New Hampshire, Carroll, Outlet of Lake Chororua

Miami University - Algae
Catalog #: 000188444
F.S. Collins #s.n. 16 September 1906
Hormospora purpurea
United States, New Hampshire, Carroll, Outlet of Lake Chororua

Yale University Herbarium
Catalog #: YU.094412
Frank Shipley Collins s.n. 16 September 1906
Hormospora purpurea Wolle
United States, New Hampshire, Carroll, Tamworth; Lake Chocorua, NH