Yale University Herbarium

YU.095254

Phycotheca Boreall-Americana.

Collins, Holden and Setchell.

1996. **Scenedesmus quadricauda** (Turp.) Bréb.
**var. maximus** W. & G. S. West.

W. & G. S. West, Trans. Linn. Soc., Ser. 2, Bot., Vol. V, p. 83, Pl. V, figs. 9-10, 1895.

G. S. West, Brit. F. W. Algae, p. 220, fig. 92, H, 1904.

Alewive Brook, Winchester, Massachusetts, May, 1913.

RALPH HARTSHORN.

The same material as that distributed under Actinastrum Hantzeschii and Micractinium pusillum, Nos. 1995 and 1997.