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

Brown University - Algae
Catalog #: ABRU00004443
C. Bullard s.n. 29 April 1910
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Weston, MA

Yale University Herbarium
Catalog #: YU.094755
Charles Bullard s.n. 29 April 1910
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Weston, MA

Field Museum of Natural History
Catalog #: C0544464F
Charles Bullard #s.n. 29 April 1910
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Middlesex, Weston

University of Michigan
Catalog #: 677604
Charles Bullard #s.n. 29 April 1910
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Middlesex, Weston

University of Michigan
Catalog #: 677613
Charles Bullard #s.n. 29 April 1910
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Middlesex, Weston

Michigan State University Algae
Catalog #: MSC0183641
Charles Bullard #s.n. 29 April 1910
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Middlesex, Weston

Miami University - Algae
Catalog #: 000189217
Charles Bullard #s.n.
Nitella flexilis (Linnaeus) C.Agardh
United States, Massachusetts, Middlesex, Weston