238 University of California Publications. [botany 



Ectocarpus confervoides f . variabilis Saunders. 



On larger algse and on a chiton. West coast of Whidbey 

 Island, Wash., N.L.G., Nos. 166!, 426!, 454!, 465! 



The plants placed under this form are referred here with some 

 doubt and need more study, as does the form itself, to determine 

 its autonomy. Some of the plants make it seem likely that 

 E. cliitinicolus Saunders, and perhaps even E. mucronatus 

 Saunders, are likely to be found to belong to the form cycle of 

 E. confervoides. 



Ectocarpus confervoides f. corticulatus Saunders. = 9 ■ w >»~<-*v=. 



On Desmarestia aculeata. Popof Island, Alaska, Saunders 

 (1901, p. 418). 



Ectocarpus granulosus (Engl. Bot.) Agardh. 



Cast ashore. Near Tracyton, Kitsap County, Wash., Tilden, 

 No. 359a! 



A slender form of this species. Mr. F. S. Collins has exam- 

 ined the specimen in Herb. Farlow and agrees in the determina- 

 tion. No. 359b is referred by him to E. mucronatus Saunders. 



Ectocarpus mucronatus Saunders. 



In tide pool. Port Renfrew, B. C, Tilden, No. 359b! , under 

 E. granulosus. 



Mr. F. S. Collins has determined this specimen as belonging 

 to this species. It seems to us that the species itself may prob- 

 ably be referred to some form of E. confervoides, on further study. 



Ectocarpus tomentosus (Hudson) Lyngbye. 



On Fucus. Harvester Island, Uyak Bay, Kadiak Island, 

 Alaska, W:A.S. and A.A.L., No. 5104! ; Sitka, Alaska, and 

 Victoria, B. C, Saunders (1901, p. 417). 



Ectocarpus oviger Harvey. 



On stipes of Nereocystis. Esquimalt, B. C, Harvey (1862, 

 p. 167). 



A species unknown to us, said to be near to E. granulosus 

 (Engl. Bot.) Agardh. 



