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

Brown University - Algae
Catalog #: ABRU00004541
F. S. Collins s.n. 03 September 1911
Spirogyra juergensii Kützing
United States, New Hampshire, Carroll, Tamworth; Tamworth, NH

University of Michigan
Catalog #: 736663
F.S. Collins #s.n. 03 September 1911
Spirogyra juergensii Kützing
United States, New Hampshire, Carroll, Tamworth

University of Michigan
Catalog #: 736664
F.S. Collins #s.n. 03 September 1911
Spirogyra juergensii Kützing
United States, New Hampshire, Carroll, Tamworth

Michigan State University Algae
Catalog #: MSC0184758
F.S. Collins #s.n. 03 September 1911
Spirogyra decimina var. juergensii (Kützing) Petlovany, 2015
United States, New Hampshire, Carroll, Tamworth

Miami University - Algae
Catalog #: 000189144
F.S. Collins #s.n. 03 September 1911
Spirogyra decimina var. juergensii (Kützing) Petlovany, 2015
United States, New Hampshire, Carroll, Tamworth

Yale University Herbarium
Catalog #: YU.095012
Frank Shipley Collins s.n. 03 September 1911
Spirogyra juergensii Kützing
United States, New Hampshire, Carroll, Tamworth; Tamworth, NH