15 



leaves on the dorsal side, being covered with two cover-cells on 

 the ventral. 



Anthericlia formed from hair-leaves grown on the terminal 

 portion of pinnulae. Procarps are formed from the second joint of a 

 hair-leaf growing near the apex of branches. Cystocarps are ovate 

 and sessile. Colour red. 



Remarks. A distinct, new species. That dorso-ventral structure 

 of the present plant is not so manifest as that of the type-species, 

 H. fallax Fkbg., is only seen from the arrangement of the normal 

 branches which arise subdistichously from somewhat dorsal side of 

 frond. In the present plant, branches are spirally grown in the 

 arrangement of \- divergence, of which, however, two branches 

 alone develop into the aforesaid normal ones, while the rest remain 

 in a rudimental state. The apical portion of the plant in question 

 does not indicate any distinct dorsoventral nature. 



While this nature is more clearly shown in the type-plant in the 

 arrangement of both normal and rudimental branches arising on the 

 dorsal side of frond, in the present plant, it is only weakly indicated 

 as described above. But as we learn from Falkenberg's Rhodo- 

 melaceen p. 52 that the dorso-ventral character is represented in 

 different ways even in the different species of the same genus, we 

 think we are right to put the present plant in this genus. 



PL. LV. Fig. 1 : fronds of Hcrpoptcros zonaricola Okam. n. 

 sp. on the frond of Zonaria Diesingiana J. Ag. in nat. state and size. 

 Fig. 2: portion of the frond magd., -"-. Fig. 3-' portion of a 

 branch ; a and b, hair-leaves still remaining on the branches growing 

 from the dorsal side of frond ; 5 *. Fig. 4- : apical portion of a 

 branch viewed from side ; a and b, hair-leaves growing on the dorsal 

 side of frond; 3 ^, Fig. 5: dorsal view of an apical portion of a 



