2 THE BOTANK'AL MAGAZINE. [Voi. xxx. No. 349. 



The geographical distribution shows that a great resem- 

 blance exists between the algological flora of Caroline Islands 

 and that of the Indian Ocean and the Malay Archipelago as 

 well as that of Ryuk3-u. Of species enumerated in the list 40 

 species are found in Ryukyu and Japan ; and from this result 

 we ma3' safely state that the algological flora of Caroline 

 Islands extends northward up to Ryuk3U and southern parts 

 of Japan proper, owing to the influence of " Kuroshiwo " or 

 Japan current. 



I wish here to express my sincere thanks to those gentlemen 

 who have put their collections in m\' disposal and to Prof. 

 Yendo for the kind help in the determination of two species. 



CHLOROPHYCEAE. 



Enteromorpha sp. 



Saipan (Yanagi). 

 Bryopsis plumosa (Huds.) ko. ; Harv. Phyc. Brit. t. III. 

 A small fragment, scarcely one cm. long. 

 Truk (Okada). 



Dist. : Widely distributed in warmer seas. 

 Caulerpa Webhiana f. tomentclla (Hary.) Weber yan Bos. 

 Monogr. p. 270, PI. XXI, fig. 4 ; Okam. Icon. Jap. Alg. Vol. Ill, 

 p. 69, PI. CXIX. 

 Truk (Miyake). 



Distr. : Friendly Isl. ; Mauritius Jsl., Japan, Rj-ukyu. 

 ^ Caulerpa horyana Hary. Char, of New Alg. from Japan, 1859, p. 

 332 ; Weber v. Bosse List d. alg. du Siboga p. 97. 

 Syn. C. anceps Harv. Okam, Icon. Jap. Alg. Vol. Ill, p. 94, PI. 

 CXXV ; C. Stahlii Wechk v. Boss. Monogr. p. 282, PI. XXII, 

 f. 34, 



The specimen which was kept in alcohol presents no bulla- 

 tion of the short pedicel, which was studied by Prof. Yendo*^ 

 in the materials of our countr}'. 



Ponai)e (Yanagi), Palau (Okadaj. 

 Distr. : Java, Japan, Ryukyu. 



1) Yendo: On Caulerpa anceps Ilarv. p. 156, fig. 4. (Bol. May. Tokyo, Vol. 

 XVII, 1903). 



