RED ALGsE. 251 



shorter secondary branches in the same manner, so 

 that the whole plant lies in one plane. The secondary 

 branches bear the pinnae. These are opposite and 

 unlike. 



They consist of a prominent, somewhat bent, 

 thick, club-shaped, obtuse, untoothed ramulus, one- 

 tenth of an inch long, set opposite a smaller pinnately 

 divided pinnule. The smaller divisions of this pinnule 

 seem to be in form like the large, undivided ramulus, 

 which is placed opposite to it on the plant. The 

 divided pinnules seem to be quite insignificant, 

 and are often almost suppressed between the stout, 

 self asserting ramuli by their side. 



It does not adhere to paper very well. In color 

 it is a reddish purple, fading to green or a dirty 

 white, older parts often almost black. Mr. Cleveland 

 says it is a rare plant at San Diego, cast up from 

 deep water, from November to April. Mrs. Bingham 

 reports it not very common at Santa Barbara, in 

 May, and June. But Dr. Anderson finds it common 

 at Santa Cruz. It evidently loves a northern climate. 



Ptiloia aspu noides, Ag. 



This is a still more distinctly northern plant than 

 the last. It is reported in California, only at Santa 

 Cruz, and there as scarce. It is a veiv much slen- 



