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

Brown University - Algae
Catalog #: ABRU00003070
G. T. Moore, Jr. s.n. 07 May 1898
Zygnema insigne Hassall
United States, Massachusetts, Chestnut Hill, MA

Michigan State University Algae
Catalog #: MSC0184767
G.T. Moore Jr. #s.n. 07 May 1898
Spirogyra insignis (Hassall) Kützing
United States, Massachusetts, Middlesex, Near Chestnut Hill

University of Michigan
Catalog #: 736775
G.T. Moore, Jr. #s.n. 07 May 1898
Zygnema insigne Hassall
United States, Massachusetts, Middlesex, Chestnut Hill

University of Michigan
Catalog #: 736776
G.T. Moore, Jr. #s.n. 07 May 1898
Zygnema insigne Hassall
United States, Massachusetts, Middlesex, Chestnut Hill

Miami University - Algae
Catalog #: 000186396
G.T. Moore, Jr. #s.n. 07 May 1898
Zygnema insigne Hassall
United States, Massachusetts, Middlesex, Chestnut Hill

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147937
496894fd-3c21-4b23-a5fc-d5e190a997d0
G.T. Moore, Jr. #s.n. 07 May 1898
Zygnema C.Agardh, 1817
United States, Massachusetts, Middlesex, Chestnut Hill

Yale University Herbarium
Catalog #: YU.091539
George Thomas Moore, Jr. s.n. 07 May 1898
Zygnema insigne Hassall
United States, Massachusetts, Chestnut Hill; Chestnut Hill, MA