Yale University Herbarium

YU.091349

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

268. Vaucheria geminata (Vauch.) D. C.,
var. racemosa Walz.

Walz, Pringsheim's Jahrbuch, Vol. V, p. 147, 1866.
Wolle, F. W. Algae of the U. S., p. 153, Pl. CXXVIII, figs. 4 & 5, 1887.

In dense floating masses in a pool, Medford, Mass., May 9, 1892.

F. S. COLLINS.