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

Field Museum of Natural History
Catalog #: C0510415F
F. S. Collins #s.n. 00 July 1903
Polysiphonia violacea (Roth) Sprengel
United States, Maine, Cumberland, South Harpswell

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00221763
be0e435b-ee76-47ad-a5d1-9d727c68be4e
F. S. Collins #s.n. 00 July 1903
Polysiphonia violacea (Roth) Sprengel
United States, Maine, South Harpswell

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0017146
F.S. Collins #1144 00 July 1903
Polysiphonia flexicaulis (Harvey) F.S.Collins
United States, Maine, Cumberland, South Harpswell

University of Michigan
Catalog #: 667974
F.S. Collins #s.n. 00 July 1903
Polysiphonia flexicaulis (Harvey) F.S.Collins
United States, Maine, Cumberland, South Harpswell

University of Michigan
Catalog #: 668048
F.S. Collins #s.n. 00 July 1903
Polysiphonia flexicaulis (Harvey) F.S.Collins
United States, Maine, Cumberland, South Harpswell

Michigan State University Algae
Catalog #: MSC0184324
F.S. Collins #s.n. 00 July 1903
Polysiphonia violacea var. flexicaulis (Harvey) F.S.Collins
United States, Maine, Cumberland, South Harpswell

Miami University - Algae
Catalog #: 000188136
F.S. Collins #s.n. 00 July 1903
Polysiphonia violacea var. flexicaulis Harvey, 1853
United States, Maine, Cumberland, South Harpswell