416 Universiiy of Calif ornia Publications in Botany [^'ol. 7 



Ectocarpus siliciilosus I", subulatus (Kuetz.) comb. nov. 



Fronds 5-25 cm. \ug\\. litilit yellow, fleecy, ]iiuch bi-andicd, not 

 const ricfcd at the joints; l)ranc]ies long, attennated above, many end- 

 inir in a loiiir hair; ('rjls of the main filaments 30-36/x, broad. 1-1.25 

 times as lon^' as i)road. zoos|)oi-aii^ia nnknovvn ; gametan^na elongated 

 snbnlate-ovoid, some stouter, some more slender, 200-GU()/^ long. 12-48|u, 

 l)n)a(i. the upper (and as a rule more slender) usually terminating in 

 a hail', on a 2-10 or 12 celled pedicel. 



In brackish pools, on sticks or grasses. Central California (San 

 Francisco Bay). 



Ectocarpus confervoidcs f. subulahis Collins, llolden, and Setehell. 

 Pliyc. Bor.-Amer. (Exsicc), no. 1231. Ectocarpus suhulatus Kuetzing, 

 Spec. Alg., 1849, p. 454, Tab. Pbyc, vol. 5, 1885. p. 19, pi. 61, fig. II. 

 Ectocarpus confervoides Hauck, Meeresalg., 1884, p. 331 (excl. 

 synonomy). Ectocarpus amphihius Harvey, Phyc, Brit., vol. 2, 1848, 

 pl. 183, Ner. Bor.-Amer.. part III, 1858, p. 125. 



Our plant seems to agree very well Avith the figures and description 

 of Ectocarpus amphihius Harvey and also, although not so perfectly, 

 with E. suhulatus Kuetz. They are both brackish water forms, as are 

 our plants. Hauck refers to his var. suhulatus also Ectocarpus drapar- 

 naldiaeformis Kuetz. and E. macrocera^ Kuetz. Judging from Kuetz- 

 ing 's illustrations, these two species may be forms of E. siliculosus 

 but are not to be included under f, suhulatus. 



