326 University of California Publications. I botany 



Family RHODOMELACE^. 



Laurencia pinnatifida (Gmelin) Lamouroux. 



Ou rocks in the lower literal and upper sublitoral zones. Nor- 

 folk Sound (near Sitka), Alaska, Postels and Riiprecht (1840, 

 p. 16, under L. speetabilis) ; Strait of Juan de Fuea and Victoria, 

 B. C, Harvey (1862, p. 169); Port Renfrew, B. C, Tilden, No. 

 320!, Butler and Polley, No. 116; west coast of Whidbey Island, 

 Wash., N.L.G., No. 449! 



A common species of the coast of California. 



Janczewskia verrucaeformis Solms. 



Parasitic on the fronds of the preceding species. West coast 

 of Whidbey Island, Wash., N.L.G., No. 449a! 



Not uncommon on the coast of Calif ornia. 



Chondria atropurpurea Harvey. 



Strait of Juan de Fuea, B. C, Harvey (1862, p. 168). 

 Known from our territory only from this reference. 



Polysiphonia atrorubescens (Dillwyn) Greville. 



In the sublitoral zone (10 fathoms). Strait of Juan de Fuea 

 and Esquimalt, B. C, Harvey (1862, p. 168). 



We have not seen any specimens referable to this species. 



Polysiphonia atrorubescens f. minor Harvey. 

 Orcas Island, Wash., Harvey (1862, p. 168). 



Polysiphonia nigrescens f. Fucoides Harvey. 

 Sitka, Alaska, Harvey (1852, p. 50). 



Polysiphonia urceolata (Lightfoot) Greville. 



On boulders near low water mark. Strait of Juan de Fuea, 

 Point Roberts, and Esquimalt, B. C, Harvey (1862, p. 169); 

 west coast of Whidbey Island, Wash., N.L.G., Nos. 224!, $£25!, 

 409! ; Channel Rocks, near Seattle, Wash., X.L.G., No. 349! 



The specimens examined have no leaves and seem to corre- 

 spond in every way to the description of this species. 





