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

Brown University - Algae
Catalog #: ABRU00003156
F. S. Collins s.n. 12 June 1898
Dictyosiphon ekmanii Areschoug
United States, Massachusetts, Nahant, MA

Rutgers University, Chrysler Herbarium - Macroalgae Collection
Catalog #: CHRB0016965
F. S. Collins s.n. 12 June 1898
Dictyosiphon ekmanii Areschoug
United States, Massachusetts, Nahant, Massachusetts

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00223404
054f0c97-1822-4428-837c-89d238124264
F. S. Collins #s.n. 12 June 1898
Dictyosiphon ekmanii Areschoug
United States, Massachusetts, Essex, Nahant

University of Michigan
Catalog #: 633209
F.S. Collins #s.n. 12 June 1898
Dictyosiphon ekmani
United States, Massachusetts, Essex, Nahant

University of Michigan
Catalog #: 633211
F.S. Collins #s.n. 12 June 1898
Dictyosiphon ekmani
United States, Massachusetts, Essex, Nahant

Field Museum of Natural History
Catalog #: C0518492F
F.S. Collins #s.n. 12 June 1898
Dictyosiphon ekmanii Areschoug
United States, Massachusetts, Essex, Nahant

Michigan State University Algae
Catalog #: MSC0182438
F.S. Collins #s.n. 12 June 1898
Dictyosiphon ekmanii Areschoug
United States, Massachusetts, Essex, Nahant

Miami University - Algae
Catalog #: 000186942
F.S. Collins #s.n. 12 June 1898
Dictyosiphon ekmani
United States, Massachusetts, Essex, Nahant

Yale University Herbarium
Catalog #: YU.091616
Frank Shipley Collins s.n. 12 June 1898
Dictyosiphon ekmanii Areschoug
United States, Massachusetts, Essex, Nahant; Nahant, MA