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

Brown University - Algae
Catalog #: ABRU00003471
F. S. Collins s.n. 08 May 1892
Zygnema cruciatum (Vaucher) C.Agardh
United States, Massachusetts, Medford, MA

University of Michigan
Catalog #: 736766
F.S. Collins #s.n. 08 May 1892
Zygnema cruciatum (Vaucher) C.Agardh
United States, Massachusetts, Middlesex, Medford

University of Michigan
Catalog #: 736768
F.S. Collins #s.n. 08 May 1892
Zygnema cruciatum (Vaucher) C.Agardh
United States, Massachusetts, Middlesex, Medford

Michigan State University Algae
Catalog #: MSC0185307
F.S. Collins #s.n. 08 May 1892
Zygnema cruciatum (Vaucher) C.Agardh
United States, Massachusetts, Middlesex, Medford

Miami University - Algae
Catalog #: 000187392
F.S. Collins #s.n. 08 May 1892
Zygnema cruciatum (Vaucher) C.Agardh
United States, Massachusetts, Middlesex, Medford

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147931
224e5d57-6919-42c4-988d-b8483b2d4afe
F.S. Collins #s.n. 08 May 1892
Zygnema C.Agardh, 1817
United States, Massachusetts, Middlesex, Medford

Yale University Herbarium
Catalog #: YU.091841
Frank Shipley Collins s.n. 08 May 1892
Zygnema cruciatum (Vaucher) C.Agardh
United States, Massachusetts, Middlesex, Medford; Medford, MA