Phycotheca Boreali-Americana
Collins, Holden & Setchell.

1712, Plectonema Battersii Gomont.

Gomont, Bull. Soc. Bot. de France, Vol. XLVI, p. 36, 1899.

Collins, Rhodora, Vol. V, p. 283, 1903.

Forti, Syll. Myx., p. 495, 1907.

Tilden, Minn. Algae, Vol. I, p. 211, 1910.

On rocks moistened by ocean spray in a shady place, Land's End, San Francisco, California, Jan. 25, 1906.

N. L. GARDNER.

The same species, from Maine and Massachusetts, was distributed as P. B.-A. No. 1960.

Phycotheca Boreali-Americana

Collins, Holden & Setchell.

1713, Plectonema Golenkinianum Gomont.

Gomont, Bull. Soc. Bot. de France, Vol. XLVI, p. 35, Pl. I, fig. 11, 1899.

Forti, Syll. Myx., p. 494, 1907.

Tilden, Minn. Algae, Vol. I, p. 210, Pl. XI, fig. 9, 1910.

On rocks moistened by ocean spray, Land's End, San Francisco, California, Jan. 25, 1906.

N. L. GARDNER.

The same species, from Maine, was distributed as P. B.-A., No. 603.