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

Brown University - Algae
Catalog #: ABRU00003851
F. S. Collins s.n. 11 July 1903
Cystoclonium purpurascens (Hudson) Kützing
United States, Maine, Cumberland, Harpswell; South Harpswell, ME

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0021146
F.S. Collins s.n. 07 November 1903
Cystoclonium purpureum (Hudson) Batters
United States, Maine, South Harpswell

University of Michigan
Catalog #: 650073
F.S. Collins #s.n. 11 July 1903
Cystoclonium purpureum (Hudson) Batters
United States, Maine, South Harpswell

University of Michigan
Catalog #: 650100
F.S. Collins #s.n. 11 July 1903
Cystoclonium purpureum (Hudson) Batters
United States, Maine, South Harpswell

Field Museum of Natural History
Catalog #: C0506794F
F.S. Collins #s.n. 11 July 1903
Cystoclonium purpurascens (Hudson) Kützing
United States, Maine, Cumberland, South Harpswell

Michigan State University Algae
Catalog #: MSC0182327
F.S. Collins #s.n. 11 July 1903
Cystoclonium purpureum (Hudson) Batters
United States, Maine, Cumberland, South Harpswell

Miami University - Algae
Catalog #: 000188132
F.S. Collins #s.n.
Cystoclonium purpureum (Hudson) Batters
United States, Maine, Cumberland, South Harpswell

Yale University Herbarium
Catalog #: YU.092223
Frank Shipley Collins s.n. 11 July 1903
Cystoclonium purpurascens (Hudson) Kützing
United States, Maine, Cumberland, Harpswell; South Harpswell, ME