182 Universif ij of Californui Puhlicaiions . [botanv 



Dermocarpa prasina (Reinsch) Bornet. 



Abundant on Sphacelaria. From Pni>'et Sound to tlic 

 Shnmag'in Islands, ISuunderH (1901, j). .')i)7). 



Chlorogloea tuberculosa (Hansofirg) Wille. 



Epiphytic on Cladophora. Port Renfrew, !>. C. Tild('ii, 

 No. 382! (nnder Pringsheimia sciitafd f. Cladophora') . 



The plants referred here with some doubt, form irre<4ular, 

 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.E. 



Spirulina major. Kuetzing. 



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

 Coupeville, Whidbey Island, Wash., X.L.G., No. 411! 



Spirulina subsalsa f. Oceanica (Crouan) Gomont. 



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

 Island, Wash., N.L.G., Nos. 446!, 471!, 61.")!, and in Collins, 

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



Osciliatoria princeps Vaucher. 



In a fresh water ])ond. Near Seattle, Wash.. Tihhu. Xo. 

 296! 



Osciliatoria proboscidea (lomont. 



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

 Alaska, A.A.L.. No. r)023a! 



Osciliatoria sancta Kuetzing. 



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

 X.G.L., No. 444! 



