
} 
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(149) 


ー - ミ PP ーー RI egm 一 Pe 
PRES RK CRKEINBR 8 Seitheerte 
THE BOTANICAL MAGAZINE. 

[Yol. VE. April 10, 1892. . , No. 62.] 

Ptilota dentata sp. nov.—Pl. IV. ' 
New Jap. Name Benihiba. 
by K. Okamura. 
Frond compressed, の で 2 midribbed, decomposito-pinnate : branches distichous, alternate ; pinnules | 
alternate, deltoid-acuminate, incurved or erecto-pa. Cystocarps single in the axils of pinnules, or Sb 
in a row along the margin of branches, short-pedunculate, involucrate. Tetraspores tripartite, each with a 
confervoid pedicel, mixed with clavate multicellular filaments, collected in a dense sorus on the apex on | 
short peduncles produced from similar positions as cystocarps.—Fruit in PE 
This alga is rather common along our Pacific coast. The specimens I have examined are from Iwaki, 
Hitachi, Boshi, Totémi, &c. 
RAF he 
eg ~ Ptilota dentat 

