Phycotheca Boreali-Americana. Collins, Holden, and Setchell.

367. Spirogyra varians (Hass.) Kuetz.

Kuetzing, Sp. Alg., p. 439, 1849.

Petit, Spirogyres des Environs de Paris, p. 19, Pl. IV, figs. 1-8, 1880.

Wolle, F. W. Algae of the U. S., p. 212, Pl. CXXXIV, figs. 8-13, 1887.

a. In a cold spring, just above high water mark, Eagle Island, Penobscot Bay, Maine, July 28, 1893.

F. S. COLLINS.

b. Forming yellowish green masses, in a small brook, Foxon, Connecticut, April 30, 1892.

W. A. SETCHELL.

b.

Yale University Herbarium

YU-106494

Yale University Herbarium

YU.091449

a.