OP ARTS AND SCIENCES. 3G9 



no Californian specimens which, it seemed to me, belonged certainly to 

 this species. 



242. Ahnfeltia plicata, Fr. New York northward ; west coast. 



— Southfirn limit f 



243. Ahnfeltia gigartinoides, Ag. "West coast. 



244. Ahnfeltia? pinnulata, Ilarv. Key West. 



245. Cystocloniumpurpurascens, Kiitz. New York northward. 



— Southern limit ? 



246. Callophyllis laciniata, Kiitz. Cape Henlopen ; Cali- 

 fornia, fide Harvey. 



*247. Callophyllis variegata, Ag. California; west coast of 

 South America ; Australia. 



*248. Callophyllis obtusifolia, Ag. (non Harvey, Phy. Austr. 

 vol. 4, pi. 193). — With regard to the Californian species of Callo- 

 phyllis there has been great confusion. This has arisen, in part, from 

 the fact that the only species mentioned in the Nereis Am.-Bor. as 

 foimd on that coast is G. laciniata, which, I am convinced, is rare, if 

 it occurs at all there. I had myself named specimens 0. laciniata, 

 but, never having received the fi-uit characteristic of this species from 

 California, my determination was based altogether on the shape of the 

 frond, which, in the specimens I have seen, is never so flabellately 

 expanded as in European specimens of C. laciniata, of which I have a 

 large suite. My specimens were all O. variegata, which seems to be 

 quite common in California. In this species, the frond is decompound 

 pinnate, the terminal pinnules erect and crenulate. The conceptacles 

 are not in marginal leaflets, as in O. laciniata, but in the frond close to, 

 or on, the margin, and of large size. The color is very variable, from 

 rosy red to almost black. The tips are often greenish, as figured in 

 Bory. Coq. pi. 14. 



I venture to give the name of G. obtusifolia, Ag., to specimens sent 

 me by Mr. D. Cleveland, from San Diego, Cal. My reasons for so 

 doing will be more properly stated in another paper. In brief, this 

 species may be known by its narrow, repeatedly dichotomous frond, 

 and conceptacles scattered over the surface prominent on both sides. 



Besides the above-mentioned species, I have a specimen, presented 

 by my friend Prof. D. C. Eaton, in which the conceptacles are scattered 

 through the frond, which is palmately divided, and of a purplish lake 

 color. This, although agreeing tolerably well with the description, does 

 not resemble very closely the plate of Callophyllis (^Rhodymenia) ornata, 

 Mont., of which I have no authentic specimen for comparison. Should 

 this prove new, it ought properly to bear the name of Prof. Eaton. 



VOL. X. (n. s. ir.) 24 



