264 Universifi/ of C<tUfornia Puhlirafions. [uotanv 



for this species outside of Bering Sea, the plants are all young 

 and do not show the eharacteristio rhizomes, and may lie forms of 

 Jj. Bovgardiand or L. huJIata. 



Cymathaere triplicata (P. & K.) J. Agardh. 



On rocks and stones in the upper sublitoral zone . North Pacitie 

 Ocean, Postels and BuprecJif (IS-tO, p. 10); Unalaska Alaska, 

 Buprechf (fide Areschoug, 1883, p. 20) : west shore of Amaknak 

 Island, Bay of Unalaska, Alaska, ll.A.»S'. and A.A.L., No. 

 3289!, in Collins, Holden and Setchell, P. B.-A., No. xxxiiia! ; 

 Shumagin Islands to Puget Sound, Saunders (1901, p. 430); 

 Karluk, Kadiak Island, Alaska, ir.A.>S'.. No. .1061!; Har- 

 vester Island. Uyak Bay, Kadiak Island, Alaska, 11 .A.S. (did 

 A.A.L., No. 5118!: Orca, Alaska, W.A.S. and A.A.L.^ No. 

 5177!; Yakutat Bay, Alaska, Rev. Alhin Johnson. No. 5716!; 

 Dcmglas. Alaska, EJdred Jninf, No. 648! ; Victoria, B. C, Tilden, 

 No. 343!; Esquimalt, B. C. ir.A.iS., No. 1872!; west coast of 

 Whidbey Island. Wash., X.L.G., No. 88! , in Collins, Holden and 

 Setchell, P. B.-A., No. xxxiiib! ; Gardner also reports it from 

 Port Townsend, liudlow Bay, and Channel Rocks near Seattle, 

 Wash. 



A plentiful and very well marked plant when fresh, but not 

 always so characteristic in herliarium specimens. No. 343 of 

 Tilden's American Algie seems to have a broad midrib similar to 

 that of Pleurophycus instead of the usual triple fold, but this 

 may be the result of too much pressure. When young or pressed 

 too much, some plants may readily be taken for forms of Lamina- 

 ria solidungKla. So far as we know, the fruit of this species 

 has never been described. No. 5177 shows an extended sorus at 

 the base of the plant, but confined to one surface. 



Pleurophycus Gardner! Setchell and Saunders. 



( )n stoues in the upper sublitoral zone. Yakutat Bay, Alaska, 

 Saunders (1901, p. 427, pi. 52); west coast of Whidbey Island 

 and near Port Townsend, Wash., X.L.G., No. 882! ; North Bay, 

 San Juan Island, Wash., Tilden, No. 346! 



The present verj' interesting and distinct genus of kelps has 

 been well described by Saunders (loc. cit.) and by Setchell (1901, 

 1>. 123), and distributed by Miss Tilden as noted above. 



