Phycotheca Boreall-Américana

Collins, Holden & Setchell.

1703. Gloeothece rupestris (L.ryng.) Bornet.

Bornet in Witt. & Nordt., Alg. Fxstce., No. 399, 1880; Algæa de Schousboe, p 177, 1892.

Forti, Syll. Myx., p. 63, 1907.

Tilden, Minn. Algæa, Vol. I, p. 26, 1910.

Palmelia rupestris Lyngbye, Hydr. Dan., p. 207, Pl. LXIX, fig. 9, 1819.

a. On dripping rocks, Mount Tamalpais, Marin County, California, July 4, 1906.

W. J. V. OSTERHOUT & H. D. DENSMORE.

b. On dripping rocks, Mill Valley Works, Marin County, California, July 20, 1906.

c. In the shade on a bank of very soft sandstone, Lake Merced, San Francisco, California, Nov., 1902.

N. L. GARDNER.

The material distributed here as a. and b. would come in Sect. 2 of Bornet's treatment of the species, and is much the same as the material from Rhode Island distributed as P. B.-A., No. c. The material distributed under e. would come in Sect. 4 of Bornet.