182 University of California Publications. [Botany 



Dermocarpa prasina (Reinsch) Bornet. 



Abundant on Sphacelaria. From Puget Sound to the 

 Shumagin Islands, Saunders (1901, p. 397). 



Chloroglcea tuberculosa (Hansgirg) Wille. 



Epiphytic on Cladophora. Port Renfrew, B. C. Tilden, 

 No. 382! (under Pringsheimia scutatd f. Gladophorce) . 



The plants referred here with some doubt, form irregular, 

 apparently bright green masses on the branches of Cladophora 

 and answer exactly to Wille 's description and plate of the habit 

 (1900, p. 2, pi. 1) as well as to those of Hansgirg (1892, p. 240 

 pi. 1, f. 9). In every respect these plants agree, with the excep- 

 tion that in the specimens distributed by Miss Tilden, there are 

 certain large cells, somewhat irregularly placed, which have the 

 appearance of being young conidangia. There is certainly noth- 

 ing looking like Pringsheimia in the specimens distributed. 



Family OSCILLATORIACE^. 



Spirulina major Kuetzing. 



Pools of slightly brackish water. Monroe's Landing, near 

 Coupeville, Whidbey Island, Wash., N.L.G., No. -ill! 



Spirulina subsalsa f. Oceanica (Crouan) Gomont. 



In mud of pools of brackish water on salt marshes. Whidbey 

 Island, Wash., N.L.G., Nos. 446!, 471!, 615!, and in Collins, 

 Holden and Setchell, P. B.-A., No. 954! 



Oscillatoria princeps Vaucher. 



In a fresh water pond. Near Seattle, Wash.. Tilden, No. 

 296 ! 



Oscillatoria proboscidea Gomont. 



In a small pond of fresh water. Glacier Valley, Unalaska, 

 Alaska, A.A.L., No. 5023a! 



Oscillatoria sancta Kuetzing. 



In a small pond of fresh water. Port Townsend, Wash., 

 N.G.L., No. 444! 



