130 AET. 12. K. YENDO. 



measuring 3-5 mm. in breadth; and the vesicles are found mostly 

 solitary near the base of the lateral branches. These characters 

 accord especially well with the illustration given by Turner in 

 Hist. Fuc. 1. c. 



I have not seen any reproductive organ on our specimens. 

 A fragmentary piece of a plant which has various characters 

 referrible to Sargassum serratifolium or its allies, was collected 

 at Shishikui, Awa Pro v. Its receptacles, however, proved the 

 plant to belong to the Carpophyllce ; and the vesicles on it were 

 apiculated, or coronated with somewhat broadened leaflets (PI. 

 XVI. fig. 4). As we have not been able to find in Japan any 

 species, except the present, which might be included in that 

 tribe, I have provisionally connected the fragment with the plant 

 above remarked upon, though not without considerable doubt. 



Localities : Nemoto, Boshü Prov. (h. s. a.) ; Enoshima, 

 Sagami Prov. (!); Shimoda, Izu Prov. (!); ? Shishikui, Awa 

 Prov. (!). 



Tribe 2. GLOMERULATM J. Ag. 



There are at least three species of plants within our boun- 

 daries which should be enumerated under the tribe Glomerulalœ. 

 They are exclusively from the warmer regions and are more or 

 less related to Sargassum du2Jlicatum J. Ag. But the exact 

 characters of the last mentioned species, as well as its relation- 

 ship to other allied members are not very clear to me. I can 

 not but repeat what was said by Major Retnbold'^ when he 

 described the Sargassum of the East Indies, viz.: — "Ohne Kennt- 

 niss der schwer zu beschaffenden Original-Exemplare, auf welche 

 J. Agardh die oben angeführten Arten basirt hat, lediglich aus 



1) Sarg. V. Ind. Arch. p. 71. 



