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

Field Museum of Natural History
Catalog #: C0537305F
F.S. Collins #s.n. 07 September 1919
Nitella oligospira var. wrightii A.Braun
United States, Massachusetts, Barnstable, Cedar Pond, Orleans

University of Michigan
Catalog #: 677515
F.S. Collins #s.n. 07 September 1919
Nitella oligospira var. wrightii A.Braun
United States, Massachusetts, Barnstable, Cedar Pond, Orleans

University of Michigan
Catalog #: 677518
F.S. Collins #s.n.
Nitella oligospira var. wrightii A.Braun
United States, Massachusetts, Barnstable, Cedar Pond, Orleans

Miami University - Algae
Catalog #: 000210723
F.S. Collins #s.n. 07 September 1909
Nitella oligospira var. wrightii A.Braun
United States, Massachusetts, Barnstable, Cedar Pond, Orleans