52 Ferns of British India and Ceylon. 



6. Leucostegia Hookeri. {Moore, under Acrop/wrus.) Rhizome 

 stout ; scales dense, lanceolate, golden ; stipe up to 6 inches long 

 slender often scaly at the base ; fronds deltoid up to io inches long, 

 3-4 pinnatifid ; lower pinnae opposite or alternate, lanceolate or 

 deltoid, 1-2 inches broad ; pinnules deltoid, ultimate segments 

 ligulate, acute, 1 -veined, f-i line broad texture ; membranaceous; sori 

 at the base of the ultimate lobes; involucre persistent, membranaceous, 

 broader than long. Davallia Clarkii, Bake?: Syn. Fil. p. 91. 



Himalayas, Lachen, and Sirmur, 8,000-12,000 feet elevation. 

 Sundukphoo, near Darjeeling, 11,000 feet. 



Very like Polypodium dareasforme, Hook., but with acute seg- 

 ments, and differing somewhat in the scales of the rhizome. Indian 

 botanists, not having seen this plant, have quoted Hookeri of Moore 

 (Clarkii of Baker) as a synonym of dareasforme, and united the 

 two under the name of Leucostegia dareasformis. Mr. Levinge 

 has lately gathered this species at Sundukphoo, but the Kew 

 specimens from Lachen and Sirmur were gathered by Thomson in 

 1849. I have examined a great many specimens of dareaeforme in 

 the Kew Herbarium, and can find no trace of an indusium, so I retain 

 it in Polypodium ; but it is very likely that there is a fugacious 

 indusium, and that it is a Leucostegia nearly allied to this species. 



7. Leucostegia pulchra. {Don. under Davallia.) Rhizome 

 wide-creeping, clothed with broad-obtuse, often peltately attached 

 scales; stipe 4-6 inches long, naked; fronds 9-15 inches long, 4-8 

 inches broad, lanceolate-deltoid, 3-4 pinnatifid, lowest pinnule 1-2 

 inches long, 1 inch broad, cut down to a narrowly-winged rachis into 

 deeply pinnatifid segments, ultimate lobes narrow lanceolate, not 

 distant, not very acute ; texture thin, rather flaccid ; sori copious, 

 usually as broad as the segment at the base of the teeth of which it 

 is placed; involucre prominent. Den. Prod. Fl. Nefi. 11. Bedd. 

 F. S. I. t. 10 (under Acrophorus). 



Madras Presidency, Western mountains, very common on rocks 

 and trees ; Ceylon, central provinces, 3,000-5,000 feet; Himalayas, 

 Nepal, and Bhotan, 2,000-9,000 feet ; Khasya ; Moulmein. 



