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

Brown University - Algae
Catalog #: ABRU00002726
W. A. Setchell s.n. 14 August 1892
Monostroma crepidinium Farlow
United States, Massachusetts, Dukes, Vineyard Haven, Martha's Vineyard, Tisbury, MA

Field Museum of Natural History
Catalog #: C0526519F
W. A. Setchell #s.n. 14 August 1892
Monostroma crepidinium Farlow
United States, Massachusetts, Dukes, Marthas Vineyard, Vineyard Haven

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00205385
cbc8a92b-3cc3-40ad-840f-5bad62f6fce4
W. A. Setchell #s.n. 14 August 1892
Monostroma crepidinum Farlow
United States, Massachusetts, Dukes, head of Vineyard Haven, Martha's Vineyard

University of Michigan
Catalog #: 1306573
W.A. Setchell #s.n. 14 August 1892
Monostroma oxysperma
United States, Massachusetts, Dukes, Vineyard Haven, Martha's Vineyard

Michigan State University Algae
Catalog #: MSC0182730
W.A. Setchell #s.n. 14 August 1892
Gayralia oxysperma (Kützing) K.L.Vinogradova ex Scagel et al.
United States, Massachusetts, Dukes, Vineyard Haven, Martha's Vineyard

Miami University - Algae
Catalog #: 000186623
W.A. Setchell #s.n. 14 August 1892
Monostroma crepidinum
United States, Massachusetts, Barnstable, Higgins Pond, East Brewster

Yale University Herbarium
Catalog #: YU.091300
William Albert Setchell s.n. 14 August 1892
Monostroma crepidinium Farlow
United States, Massachusetts, Dukes, Vineyard Haven, Martha's Vineyard, Tisbury, MA