CORALLINiE YERM JAPONIC^. 17 



conceptiiculjs aliis in mediis articulorum aliis saepe in apicibns loborum 

 insitis. 



The present species is large and beautiful plant often attaining 

 the lieight of 12-20 cm. The articuli are sagittated with compressed 

 and broad Avings, without any indication of the zonal striation. 

 Conceptacles are mostly found on the surfaces of the flat articuli, not 

 seldom immersed in the projected angles of the articuli. 



It is in this plant that the decussate branches are often proliferated 

 fi-om the surface of an articulus (fig. 1 & 2. PI. II). In normal 

 condition the proliferations are few in number and short in length. 

 Ihit when they are numerous and luxuriant the frond assumes quite 

 a differerit form from the normal one ; and not seldom another species 

 of CoraUinae grows together witli those aberrant branches, making 

 tlie frond much more perplexing. 



The decussate branches have the articuli normal but often 

 linear, sometimes very broad spathulate ones. In tlie latter cases the 

 terminal articuli are generally thin, broad and fan-shaped, concave as 

 a watchglass. 



I was not able to find any description satisfact(n*ily referable to 

 this plant. The figures of Co/7/.//?«a //•o/i(/Y'.s-6Y7/.s', G. (jonphoneiiiacea and 

 C.ßahellata rar. in Kutzing's Tab. Phyc. (PI. 5Î). II ; PI. G3. I; PL 

 ()o. II) seem to have some relations with the plant in question. But 

 the original descriptions of the above mentioned species are impossible 

 to be applied to our plant. 



It is rather common in the middle parts of Japan, on the 

 Pacific coast as well as on the Japan Sea side : found in the sublittoral 

 region often covering a gotjd area of a rock. Misaki : Bôshû : 

 Shimoda : Pro v. of Hiuga : Prov. of Wakasa (Mr. K. Tsuge) : Prov. 

 of P]chi<z"o. 



