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

Brown University - Algae
Catalog #: ABRU00003076
F. S. Collins s.n.
Enteromorpha hopkirkii M'Calla ex Harvey
United States, Maine, Hancock, Brooksville; Cape Rosier, ME

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00212732
6ef93b0c-1062-4d41-9a93-7c18d527c27c
F. S. Collins #s.n. 00 July 1896
Ulva hopkirkii (M'Calla ex Harvey) P.Crouan & H.Crouan
United States, Maine, Hancock, Cape Rosier

Field Museum of Natural History
Catalog #: C0525899F
F.S. Collins #s.n. 00 July 1896
Enteromorpha hopkirkii M'Calla ex Harvey
United States, Maine, Hancock, Cape Rosier

University of Michigan
Catalog #: 733857
F.S. Collins #s.n. 00 July 1896
Ulva flexuosa subsp. paradoxa (C.Agardh) M.J.Wynne
United States, Maine, Cape Rosier

University of Michigan
Catalog #: 733861
F.S. Collins #s.n. 00 July 1896
Ulva flexuosa subsp. paradoxa (C.Agardh) M.J.Wynne
United States, Maine, Cape Rosier

Michigan State University Algae
Catalog #: MSC0185161
F.S. Collins #s.n. 00 July 1896
Ulva flexuosa subsp. paradoxa (C.Agardh) M.J.Wynne
United States, Maine, Hancock, Cape Rosier

Miami University - Algae
Catalog #: 000186867
F.S. Collins #s.n. 00 July 1896
Enteromorpha hopkirkii M'Calla ex Harvey
United States, Maine, Cape Rosier

Yale University Herbarium
Catalog #: YU.091545
Frank Shipley Collins s.n. 00 July 1896
Enteromorpha hopkirkii M'Calla ex Harvey
United States, Maine, Hancock, Brooksville; Cape Rosier, ME