YU.094175

Phycotheca Boreali-Americana.

Collins, Holden and Setchell.

1219. Schizochlamys gelatinosa A. Br.

A. Braun in Kuetzing, Sp. Alg., p. 891, 1849.
De Toni, Syll. Alg., Vol. I, p. 644, 1889.

Cultivated in the Botanical Laboratory of the University of
California, Berkeley, California, Sept., 1904.

N. L. GARDNER.

The cells are rather longer and narrower in this form than
in the plant from Massachusetts, distributed as P. B.-A., No. 563.

YU.094176

Phycotheca Boreali-Americana.

Collins, Holden and Setchell.

1220. Scenedesmus Bijuga

(Turp.) Wittr. Nordst. & Lagerh.

Wittrock, Nordstedt & Lagerheim, Alg. Exsice., No. 1567, 1903.

Achmanthes Bijuga Turpin, Aperçu Organ., p. 310, Pl. XIII, fig. 4, 1828.

Scenedesmus obtusus Wolle, F. W. Algae of the U. S., p. 173,
Pl. CLVI, figs. 22-24, 1887.

S. bijugatus De Toni, Syll. Alg., Vol. I, p. 563, 1889.

In quiet shallow pool, Berkeley, California, May 23, 1902.

W. J. V. OSTERHOUT & N. L. GARDNER.

YU.094177

Phycotheca Boreali-Americana.

Collins, Holden and Setchell.

1221. Characium minutum A. Br.

A. Braun, Alg. Unicell., p. 46, Pl. V. F, 1855.
De Toni, Syll. Alg., Vol. I, p. 623, 1889.

On Cladophora fracta, etc., in a small pond, Medford, Massachusetts, May 17, 1904.

P. S. COLLINS.