24 Ferns of British India and Ceylon. 



GENUS X.— CIBOTIUM. (Kaulf) 



(Kibotos, a casket — form of the indusium.) 



Sori at the apex of a vein, intra-marginal ; indusium distinctly 

 tvvo-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 from 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 linear-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, Fil. Sp. p. 166. 

 Hook. Syn. Fil. p. 49. C. glaucum, Bedd. F. B. L. t. 83. 



Mishmee, Assam, Tavoy. 



(Also in the Malay Islands and South China.) 



GENUS XL— DENNST^EDTIA. (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. 



1. Dennst^edtia 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, 



