242 University of Californid PiiJilicaiions. ibotanv 



While this species seems to be a Mt/flojiJii/rns in Kjelhiian's 

 sense, j'et it seems to us that the whole ((uestion of the relation 

 of this genus to A txilipns and to Cltordarid is very unsatisfactory 

 as yet. Younger plants of this species are needed for study in 

 this connection, so that the region or regions of gi-owth may be 

 more definitely established. Further discussion will be found 

 under Chordaria and Analipus. 



Colpomenia sinuosa (Roth) Derbes et Sober. 



Growing on other algff', in the lower litoral zone. Prince 

 William Sound and Yakutat Bay, Alaska, Sdunders (1901. 

 p. 421); Port Renfrew, B.C., Tildni, No. .122!, Buihr a„<1 

 Pollfy, No. 111! 



The specimens included here are evidently the thinner forms, 

 or maybe even states due to age, which Saunders has considered 

 the typical form. While we cannot refer to the type to settle the 

 question, we believe that the thinner forms, whether single and 

 more regular in shape (C sinuosa Saunders, 1896, ]). 164, pi. 82. 

 f. 7, 8) or the aggregate expanded forms {C. sinuosa f^.rpansa 

 Saunders, 1898, p. 164, pi. 32, f. 4-6) are merely younger plants 

 which become thicker and darker broAvn as they become older, 



Colpomenia sinuosa f. tuberculata (Saunders) Setchell and 



Gardner comb, no v. 



C. iuherctihifa Saunders, Phycological Memoirs, p. 164, pi. 32, 

 f. 1-3. 1898. 



On other algff- in the lower litoral zone. Northeast shore of 

 Captains Bay, Unalaska, Alaska, ir.A.»S'. and A.A.L., No. 

 4090! ; west coast of Whidbey Island, Wash.. ^.L.(i., No. 106! 



This plant, as it seems to us from a study not only of material 

 from the northwest coast, but also from a study of Californian 

 specimens, is only a somewhat thicker, more or less distorted 

 form of C. siiiKosa, and we feel that all the autonomy necessary 

 is indicated ])y a different form-name. 



Colpomenia sinuosa t. deformans Setchell and Gardner 



nom. iiov. Plate 18. 



Scytosiphon hullosus Saunders, Phycological Memoirs, p. 163, 

 1)1. 31, f. 1-7, 1898. 



