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

Brown University - Algae
Catalog #: ABRU00003089
F. S. Collins s.n. 05 June 1891
Enteromorpha prolifera var. tubulosa (Kützing) Batters
United States, Massachusetts, Malden, MA

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00213622
499f6224-38c5-40ee-9c6b-d48cf2121910
F. S. Collins #471 05 June 1891
Ulva prolifera O.F.M
United States, Massachusetts, Middlesex, Malden

Field Museum of Natural History
Catalog #: C0526331F
F. S. Collins #s.n. 05 June 1891
Enteromorpha prolifera var. tubulosa (Kützing) Batters
United States, Massachusetts, Middlesex, Malden

University of Michigan
Catalog #: 727920
F.S. Collins #s.n. 05 June 1891
Enteromorpha prolifera var. tubulosa (Kützing) Batters
United States, Massachusetts, Middlesex, Malden

Michigan State University Algae
Catalog #: MSC0185154
F.S. Collins #s.n. 05 June 1891
Ulva flexuosa Wulfen
United States, Massachusetts, Middlesex, Malden

Miami University - Algae
Catalog #: 000186878
F.S. Collins #s.n. 05 June 1891
Enteromorpha prolifera var. tubulosa (Kützing) Batters
United States, Massachusetts, Middlesex, Malden

Yale University Herbarium
Catalog #: YU.091553
Frank Shipley Collins s.n. 05 June 1891
Enteromorpha prolifera var. tubulosa (Kützing) Batters
United States, Massachusetts, Middlesex, Malden; Malden, MA