CALIFORNIAN ALG^. 75 



later polysporous (24 spores). Cystocarps naked on short unicellular 

 lateral rarauli, often bi-lobed. 



Santa Cruz, Mrs. Snyder; Santa Barbara, Mrs. Bingham; San 

 Diego, Mr. Cleveland, Mrs. Snyder. 



This species, which forms dense tufts one to two inches high, of a 

 purple-lake color, on rocks at low tide, resembles, when mounted, 

 specimens of Rhodoehortoii fioridulum. It belongs to the subgenus 

 Meristocarpus of Naegeli's Herpothamnion, which is now considered 

 not to differ from the Spermothamnion of Areschoug. Cystocarpic 

 material collected by Mrs. Snyder, for which I am indebted to 

 Mr. Collins, show, that our plant, both in the young stages and 

 mature fruit, corresponds perfectly with other species of Sper- 

 mothamnion, The species is distinguished from its allies by its 

 naked cystocarps, which appear to be borne on short unicellular 

 pedicels scattered along the large branches as well as by the large 

 number of polyspores which exceed the number (16) found by 

 Naegeli in 8. intricatimi. Furthermore the descriptions of S. intrica- 

 tum and (S. sphoirieum, the two species placed by Naegeli in his sub- 

 genus Meristocarpus characterized by the presence of polyspores, 

 show that their habit is unlike that of S. Sayderce, which, as has 

 been said, has a strong external resemblance to Rliodochorton 

 floridulum. I saw no antheridia on the couceptacular plants 

 examined, and it may be that the species is dioecious. 



Polyopes Bushias Farlow. Exs. Phycotheca Boreali-Ameri- 

 cana. No. 600, sub. Cryptonemia. 



Stipe short, cylindrical, cartilaginous, passing into a narrow, flat 

 or slightly channeled, linear frond which is repeatedly dichotomous 

 flabellate in outline with obtuse, erect or slightly diverging tips. 

 Cystocarps in groups immersed in the tips of short lateral pinnae on 

 the larger dichotomies. 



San Pedro, Mrs. Bush ; San Diego, Mr. Cleveland, Mrs. Snydei*, 

 Farlow. 



A rather pretty, deep rose-red species, which is apparently not 

 common and is only known washed ashore. It is nearly always 

 sterile, and I have seen but a single specimen collected by Mr. 

 Averill, without note as to locality, which bears cystocarps, and they 

 are scanty. The tetraspores are quite unknown, and, unfortunately, 



