24 
Ferns of British India and Ceylon. 
GENUS X.— CIBOTIUM. {Kaulf) 
{Kibofos, a casket — form of the indusium.) 
Sori at the apex of a vein, intra-marginal ; indusium distinctly 
two-valved, the outer valve coriaceous, distinct from the substance 
of the frond ; veins free, simple, forked, or pinnate ; arborescent, 
with large decompound coriaceous fronds. Only differs fiom Dick- 
sonia in the outer valve of the indusium being distinct from the sub- 
stance of the frond. 
I. CiBOTiUM Barometz. {Link) Arborescent; fronds tri- 
pinnate, lower pinnae ovate-lanceolate, 1-2 feet long, 6-12 inches 
broad ; pinnules hnear-acuminate, cut down within a short dis- 
tance of the rachis above, and sometimes quite down to it at the 
base, segments linear-oblong, acute, subfalcate, upper surface naked, 
shining, lower glaucous, sometimes furfuraceous ; sori 2-12 to a lobe ; 
the valves nearly equal, transversely oblong. Link^ Fit. Sp. p. 166. 
Hook. Syn. Fit. p. 49. C. glaucum, Bedd. F. B. I. t. 83. 
Mishmee, Assam, Tavoy. 
(Also in the Malay Islands and South China.) 
GENUS XI.^DENNST^DTIA. {Bernh) 
(In honour of Dennstadt, a German writer.) 
Sori at the apex of a vein ; indusium cup-shaped, not at all, or 
very indistinctly, two-valved ; veins free, simple, forked, or pinnate ; 
not arborescent ; fronds herbaceous or membranaceous. Patania 
Presl. a name of later date. Dicksonia Sec. Patania. Hook. 
I. Dennst^dtia scabra. {Wall, under Dicksonia.) Rhizome 
wide-creeping, villous ; main rachis scabrous, often wavy ; fronds very 
variable in size, up to 2^-3 feet long, and 2 feet broad ; deltoid 
or ovate, bipinnate, surface beneath with scattered glistening hairs, 
