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

Brown University - Algae
Catalog #: ABRU00004456
C. Bullard s.n. 14 July 1910
Chroococcus turgidus var. chalybeus
United States, Massachusetts, Lost Pond, Brookline, MA

Yale University Herbarium
Catalog #: YU.094925
Charles Bullard s.n. 14 July 1910
Chroococcus turgidus (Kützing) Nägeli
United States, Massachusetts, Lost Pond, Brookline, MA

Michigan State University Algae
Catalog #: MSC0181866
Charles Bullard #s.n. 14 July 1901
Chroococcus turgidus var. chalybeus
United States, Massachusetts, Middlesex, Lost Pond, Brookline

Miami University - Algae
Catalog #: 000210537
Charles Bullard #s.n.
Chroococcus turgidus var. chalybeus
United States, Massachusetts, Middlesex, Lost Pond, Brookline