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

University of Michigan
Catalog #: 736669
W.J.V. Osterhout #s.n. 07 May 1895
Spirogyra longata (Vaucher) Kützing
United States, Rhode Island, Providence, Knightsville

University of Michigan
Catalog #: 736670
W.J.V. Osterhout #s.n. 07 May 1895
Spirogyra longata (Vaucher) Kützing
United States, Rhode Island, Providence, Knightsville

Michigan State University Algae
Catalog #: MSC0184774
W.J.V. Osterhout #s.n. 07 May 1895
Spirogyra longata (Vaucher) Kützing
United States, Rhode Island, Providence, Knightsville

Drexel University, Academy of Natural Sciences - Algae
Catalog #: PH00147798
8761353f-126f-4c51-a789-dc13bc235bfb
W.J.V. Osterhout #s.n. 07 May 1895
Spirogyra longata (Vaucher) K
United States, Rhode Island, Providence, Knightsville