Phycotheca Boreali-Americana.

Collina, Holden and Setchell

1018. Spirogyra orbicularis (Hass.) Kuetz.

Kuetzing, Sp. Alg., p. 442, 1849.

Petit, Spirogyres des Environs de Paris, p. 31, Pl. XII, figs. 1 & 2, 1880.

S. maxima De Toni, Syll. Alg., Vol. I, p. 756, 1889, in part.

Zygnema orbiculare Hassall, F. W. Algae, p. 138, Pl. XIX, figs. 1 and 2, 1852.

In a stream, San Leandro, California, Oct. 1, 1902.

N. L. GARDNER.

Yale University Herbarium

YU.092101