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

Brown University - Algae
Catalog #: ABRU00004322
F. S. Collins s.n. 13 July 1907
Monostroma orbiculatum var. varium
United States, Massachusetts, Eastham, MA

Field Museum of Natural History
Catalog #: C0526588F
F. S. Collins #s.n. 13 July 1907
Monostroma orbiculatum Thuret
United States, Massachusetts, Barnstable, Eastham

University Herbarium, University of California, Berkeley
Catalog #: UC751167
F. S. Collins #s.n. 13 July 1907
Monostroma orbiculatum Thuret
United States, Massachusetts, Barnstable, Eastham

University of Michigan
Catalog #: 728108
F.S. Collins #s.n. 13 July 1907
Gayralia oxysperma (Kützing) K.L.Vinogradova ex Scagel et al.
United States, Massachusetts, Barnstable, Eastham

University of Michigan
Catalog #: 730192
F.S. Collins #s.n. 13 July 1907
Monostroma orbiculatum Thuret
United States, Massachusetts, Barnstable, Eastham

Michigan State University Algae
Catalog #: MSC0182728
F.S. Collins #s.n. 13 July 1907
Gayralia oxysperma (Kützing) K.L.Vinogradova ex Scagel et al.
United States, Massachusetts, Barnstable, Eastham

Miami University - Algae
Catalog #: 000189048
F.S. Collins #s.n.
Gayralia oxysperma (Kützing) K.L.Vinogradova ex Scagel et al.
United States, Massachusetts, Barnstable, Eastham

Yale University Herbarium
Catalog #: YU.094630
Frank Shipley Collins s.n. 13 July 1907
Monostroma orbiculatum Thuret
United States, Massachusetts, Barnstable, Eastham; Eastham, MA