TAB. LIII. 
Polypodium (Drynaria) rostratum, Hook. 
Frondibus elliptico-lanceolatis rostrato-acuminatis basi atten- 
uate chartaceis opacis integerrimis glabris, soris magnis 
costam versus subuniseriatim dispositis, venis omnibus 
uniformibus reticulatis, areolis bexagonis oblongis, venulis 
liberis simplicibus furcatisve, stipite gracili fronde breviore, 
caudice gracili elongato filiformi. 
Hab. Khasya, Drs. Hooker and Thomson . 
A Polypodium of the Drynaria or Phymatodes group, which 
does not appear to be known hitherto to Botanists. Unlike that 
at our Tab. 51, it has no costulse, in other words the costa is 
not pinnated with strong strait parallel primary veins : the 
whole surface is reticulated, with oblong hexagons lying in 
an oblique direction, united by an intramarginal vein, and 
within each areole is generally one simple or forked, ultimate, 
free veinlet, the branches are often much divaricated. The 
frond is of a parchmenty or chartaceous texture, between 
coriaceous and membranaceous, opaque. The apex runs out 
into a long, narrow beak, whence the specific name. 
Fig. 1. Sterile portion of a frond, f. 2. Fertile portion 
seen from beneath : — magnified . 
