326 Universifi/ of (California Piililiraiions. ibotany 



Family KHODOMELACE.4^. 



Laurencia pinnatifida ((Tincliu) Lanioiiroux. 



On rocks in the lower litoral and upper su])litoral zones. Nor- 

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

 p. 16, under L. sppciahilis) ; Strait of Juan de Fuca and Victoria, 

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

 320!, Butler and PoUey, No. 116; west coast of Whidljey 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 California. 



Chondria atropurpurea Harvey. 



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

 Known from our territory only from this reference. 



Polysiphonia atrorubescens (Dillwyn) Ureville. 



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

 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 (18.")2. j). .")()). 



Polysiphonia urceolata (Lio'htfoot) Greville. 



On boulders near low watei- mark. Strait of Juan de Fuca,, 

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

 west coast of Whidbey Island, Wash., X.L.G., Nos. 224!, 3225!, 

 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. 



