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

Brown University - Algae
Catalog #: ABRU00003762
N. L. Gardner s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, Ravenna Park, Seattle, WA

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147806
8f2addcf-a5ee-4da8-a5be-d555a49704c5
N. L. Gardner #s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, Ravenna Park, Seattle

University of Michigan
Catalog #: 736676
N.L. Gardner #s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, Ravenna Park, Seattle

University of Michigan
Catalog #: 736677
N.L. Gardner #s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, King, Ravenna Park, Seattle

Michigan State University Algae
Catalog #: MSC0184776
N.L. Gardner #s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, King, Ravenna Park, Seattle

Miami University - Algae
Catalog #: 000188045
N.L. Gardner #s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, Ravenna Park, Seattle

Yale University Herbarium
Catalog #: YU.092148
Nathaniel Lyon Gardner s.n. 21 May 1901
Spirogyra lutetiana Petit
United States, Washington, Ravenna Park, Seattle, WA