Hooheriane. N. O. Filices. 
DCCCCXLIX. 
PoLyPopium (Ctenopteris) Knasyanum, Hook. 
Pendulum, frondibus cespitosis subcoriaceo-membranaceis 
elongatis lineari-lanceolatis acuminatis basi attenuatis pro- 
funde pinnatifidis, lobis oblongis acutiusculis subsinuato- 
crenatis ciliatis rachi paginaque subtus_hispido-hirsutis, 
venis simplicibus apice marginem versus soriferis, soris sub- 
elliptico-rotundatis immersis, stipite brevissimo subnullo, 
radice fibroso-czspitosa. 
Has. On trees, Khasya, Drs. Hooker and Thomson. 
Fronds a foot to a foot and a half or more long, nearly 
sessile, for the leafy lobed portion extends nearly to. the 
root. The breadth in the widest part is two inches, tapering 
towards the base and towards the point. The margin and the 
surface and rachis beneath (the latter sometimes above) are 
hairy, and ciliated. The sori, occupying the apex of a single 
and simple vein, is always sunk in a depression, which depres- 
sion occasions a roundish swelling or tubercle on the opposite 
side, only, however, slightly prominent, and very unlike the 
sack or bag represented in our Polypodium papillosum 
Tab. 946, “i ee 
Fig. 1. Fertile segment of a frond, seen from above. /f. 2. 
the same, seen from beneath :—magnified 
