Phycotheca Boreali-Americana.

Collins, Holden and Betchell

1302. Aphanothece stagnina (Spreng.) A. Br.

A. Braun in Rabenhorst, Fl. Eur. Alg., Vol. II, p. 66, 1865.
Coccochloris stagnina Sprengel in Linnaeus, Syst. Veg., Vol. IV,
p. 372, 1827.

Forming firm, light green, spherical or tuberculate floating masses, up to 2 cm. diam., Walnut Lake, Oakland Co., Michigan, May 6, 1906.

T. L. HANKINSON.

Yale University Herbarium

YU.094331