Feb.. iJi.i.j YENDO.- NOTES ON ALGJE NEW TO JAPAN, IV. Tib 



= Chondrus mamillosus var. unalnskcnsis Kupk. Tangc dcs ochot. 



Meercs. p. 318. 

 = Gigartina paciAca Kjellm.: Bcrinj^liafv. AlgH. j). 31, Tab. 1, li;.^. 



21-22.— De Toni: Syll. Alg. IV, j). 217.— Ok.v.m.: Icon. Jap. Alg. 



Vol. 1. pi. 34, fig. 1-8.— Yendo: Text Book of Mar. Al^'. ^in 



Japanese), p. 609, fig. 172. 



KjELLMAN proposed a new specific name, Gigartina paci'fica, 

 for a plant which he has collected at Bering Island. He noted 

 that the plant stands close by G. mamillosa, and assumes the 

 position in the Pacific Ocean as G. mamillosa does in the 

 Atlantic. He further stated: — "Till samma formkrets eller 

 artgrupp som den hora antaglingen de Gigartina-i'ormev, hvilka 

 blifvet beskrifna af Ruprecht fr&n Ochotska hafvet och Bering- 

 hafvet under namnen G. ochotensis, G. unalaskensis och G. 

 sjtchensis. De lemnade beskrifningerne aro dock icke af den 

 beskaffenhet, att detta later sig bestamdt afgoras." 



The descriptions of the three plants under Chondrus mamil- 

 losus var. ochotensis, &c., in Tange des Ochot. Meeres, how- 

 ever, are not so ambiguous in separating them from one 

 another as Kjellman says, provided that the referrer had been 

 familiar with them. Among the material from northern seas 

 of Japan, I could make out var. unalaskensis and var. ocho- 

 tensis with pretty sharp distinctions. The description and 

 figures of G. pacihca given by Kjellman appeared to me to 

 be applicable to some forms of var. unalaskensis. Setchell 

 and Gardner^^ were also in the opinion that the description 

 of var. unalaskensis " seems to point directly to Kjellman's 

 plant." The two botanists expressed a view that the three 

 varieties may probabl}^ be referred to Chondrus crispus. It 

 naturally follows that they have omitted to state anything 

 further about the three varieties. On the other hand, they 

 have mentioned various new forms under G. mamillosa. Some 

 of the forms appeared to me to agree with our plants which 

 I have identified with Ruprecht's varieties. The specific dis- 

 tinctions of our Gigartina forms grew much more ambiguous 

 than before. 



1) Setchell and CIakdner: .\Ig. N. W. Auier. p. 301. 



