vol. l] Setchell— Gardner. — Algce of Northwestern America. 331 



pi. 39, f. a.), however represents, as it seems to us, a form of 

 Odontlialia floccosa. This species is very common along the coast 

 of California. 



Rhodomela Lycopodioides f. Cladostephus (J. Agardh) 



Kjellman. 



On stones in quiet water, upper sublitoral zone. East shore of 

 Amaknak Island. Bay of Unalaska, Alaska, TU.A.»S. and A.A.L., 

 Xo. 4079! ; Yakutat Bay, Alaska, Rev. Albin Johnson, No. 5706! 



We have found a number of forms of a species which cannot 

 be referred to R. Larix or to Odonthalia floccosa and, after care- 

 ful study, we are convinced that all, or perhaps nearly all, are to 

 be referred to R. Lycopodioides. They are puzzling forms and 

 we are occasionally in some considerable doubt about some par- 

 ticular plant. Kjellman's account in the Alga? of the Arctic Sea 

 has been of great help and we have referred our forms much as 

 he has done. The present form is a coarse one and may have 

 passed as a slender form of R. Larix. It differs from that species 

 in being more regularly and more pinnately branched and has a 

 much more regular distribution of branchlets. 



Rhodomela Lycopodioides f. typica subf. compacta Kjellman. 



On stones in the middle literal zone. St. Paul, Kadiak 

 Island, Alaska, W.A.8. and A. A. L., Xos. 5142! (cystocarpic! ), 

 5146 ! (tetrasporic ! ) . 



This fonn is less coarse, not so rigid and wiry, and less 

 Cladostephus-like than the last, but it is decidedly more densely 

 provided with branchlets than the next. It has the intensely 

 black color, when dried, common to all the members of this 

 group of fonns. 



Rhodomela Lycopodioides f. typica subf. laxa Kjellman. 



On rocks in the literal zone. St. Paul Island, Alaska, 

 Greeley and Snodgrass, Xo. 5796a! ; Bay of Unalaska, Unalaska, 

 Alaska, W.A.S. and A.A.L., No. 5017a!; Uyak Bay, Kadiak 

 Island, Alaska, TT.A..S'. and A.A.L., Xo. 5074!; Orca, Alaska, 

 W.A.S. and A.A.L., No. 5162!; Yakutat Bay, Alaska, Rev. 

 Albin Johnson, No. 5710! ; Sitka, Alaska, Ida M. Rodgers, 

 Xo. 5726! 



