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THE BOTANICAL MAGAZINE. 

{Vol. VII. _ May 10, 1893, No. 75.] 



Contributions to the Phycology of Japan. 
By K, OKAMURA. 
Grateloupia horrida, sp. nov. 
Nom. jap. Mino-ji-nori, ミ フ デフ ». 
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Root a small disc. Stem simple or sometimes branched, compressed or almost cylindrical, short, 0.5-1 
cm. long, soon passing into the oval or subcuneate base of the frond. Frond tufted or solitary, flat, linear- 
lanceolate, slightly thickened at the margin, 3 cm. broad, rarely simple, usually constricted at long 
intervals so as to form nodes, branches arising proliferously from the nodes or apex. Apex of frond 
generally dissolved into two or three frondlets or branches, rarely simple and sublate. Branches either 
simple and lanceolate or attenuated above, or ramifying dichotomously become linear. Internodes sublanceo- 
late or almost oval in some small specimens. Smaller prolifications constricted at the base, densely arising 
I ーー 
~~ Contributions to the Phycology of Japan. 



