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

University of North Carolina at Chapel Hill Herbarium; Max & Fran Hommersand Algae Herbarium: Algae
Catalog #: NCU-A-0020158
Bullard, Charles #s.n. 15 July 1916
Micrasterias radiosa var. swainii (Hastings) West & G.S.West
United States, Massachusetts, Barnstable, North Eastham; North Eastham

Brown University - Algae
Catalog #: ABRU00005020
C. Bullard s.n. 15 July 1916
Micrasterias radiosa var. swainii (Hastings) West & G.S.West
United States, Massachusetts, North Eastham, MA

Yale University Herbarium
Catalog #: YU.095492
Charles Bullard s.n. 15 July 1916
Micrasterias radiosa var. swainii (Hastings) West & G.S.West
United States, Massachusetts, Barnstable, Eastham; North Eastham, MA

University of Michigan
Catalog #: 736358
Charles Bullard #s.n. 15 July 1916
Micrasterias radiosa var. swainii (Hastings) West & G.S.West
United States, Massachusetts, Barnstable, North Eastham

University of Michigan
Catalog #: 736359
Charles Bullard #s.n. 15 July 1916
Micrasterias radiosa var. swainii (Hastings) West & G.S.West
United States, Massachusetts, Barnstable, North Eastham

Michigan State University Algae
Catalog #: MSC0183465
Charles Bullard #s.n. 15 July 1916
Micrasterias radiosa var. swainii (Hastings) West & G.S.West
United States, Massachusetts, Barnstable, North Eastham

Miami University - Algae
Catalog #: 000210251
Charles Bullard #s.n. 15 July 1916
Micrasterias radiosa var. swainei
United States, Massachusetts, Barnstable, North Eastham