490 University of California Puhlications in Botany [Vol. 6 



speaks of it in a discussion of its relation to his C. dimorphum in 

 which he says, ' ' Eine raoglicherweise nahestehenden Form ist vielleicht 

 Saunders C odium adhaerens von der nordamerikanischen Westkiiste 

 (Saunders, Siphon. Alg.), deren Schlauche wenigstens einigermassen 

 in der Spitze verdickt zu sein scheinen 'slightlj^ thickened at the distal 

 end.' Indessen bemerkt Saunders nicht iiber einen etwaigen Dimor- 

 phismus in der Schlauchwanderdickung, die offenbar sehr unbedeutend 

 ist." Saunders again (1901, p. 416) reports a C. adhaerens as having 

 been "dredged at Kadiak, at 15 meters depth (350)." The only 

 comment he makes in this connection follows: "This species usually 

 grows between tide marks and its occurrence at this depth is excep- 

 tional." If this is indeed the same species that grows on the coast of 

 Central California, it is a considerably greater range in latitude, con- 

 sidering the marked differences in temperature of the waters of the 

 two localities, than the great majority of algae are known to thrive 

 in normally. Since Saunders reported it in the north, Codium Ritteri 

 Setchell & Gardner has been published (1903, p. 231), based upon a 

 single specimen collected b}^ W. E. Ritter in two or three fathoms of 

 water at Berg Bay, Alaska. Later Josephine E. Tilden found C. 

 Bitteri in considerable abundance at Port Renfrew, on the west coast 

 of Vancouver Island, and distributed it in her America^i Algae as no. 

 370, under C. adhaerens. Still later both T. C. Frye and G. B. Rigg 

 of the University of Washington have collected C. Bitteri in Alaska, 

 growing in the sublittoral belt. It probably is rather generally dis- 

 tributed from Vancouver Island northward, possibly to the Bering Sea. 

 I have not seen the Saunders' specimen of C adhaerens from Kadiak 

 {loc. cit.), but in view of its incrusting habit, and its habitat in the 

 .sublittoral belt, it is to be suspected that his C. adhaerens should be 

 referred to C. Bitteri. Setchell and Gardner (1903, p. 231) referred 

 to the report of Saunders' Kadiak specimens of C. adhaerens and 

 added to the list of localities a collection of my own from the west 

 coast of AVhidbey Island, Washington, and in July, 1917, I collected it 

 at Sitka, Alaska. F. S. Collins (1909, p. 387) describes C. adhaerens 

 and gives its range as "Vancouver to California," and again (1913, 

 p. 105) listed it from Vancouver Island. 



Recently Annie M. Hurd has published the most extensive account 

 of the plants that have passed for C. adhaerens in the vicinity of the 

 Puget Sound Marine Station at Friday Harbor, San Juan Island, 

 Washington (Hurd, 1916, pp. 211-219, pi. 37). Through the courtesy 

 of Svedelius she secured a portion of the type material in liquid of 



