Ferns of British India and Ceylon. 



329 



gradually tapering below and decurrent upon the stipes, costules 

 distinct, elevated on the under side ; sori immersed, very minute and 

 numerous, arranged in compact closely placed lines or series between 

 the costules and in equally-compact series transversely with them ; 

 areoles in about 10 series between the costa and margin, each in- 

 cluding many veinlets which are much branched and anastomosing. 

 Sw. Sjn. Fil. 29, 226. N. costatus, Hook. Sp. Fil. v. 50. Wall. 

 Cat. p. 265. Bedd. F. B. I. t. 120. 

 Himalayas, from Gurwhal to 

 Bhotan, 2,000-6,000 feet elevation, 

 Khasya, 2,000-3,000 feet, Paras- 

 nath, 2,500 feet ; Tenasserim ; 

 Golcondah Hills West of Vizaga- 

 patam. My Birma specimens have 

 very long stipes and the frond scarcely 

 decurrent, my Himalaya and Viza- 

 gatam specimens have the frond very 

 much decurrent, and the stipe very J 

 short. 



7. NlPHOBOLUS SUBFURFURA- 



CEUS. {Hook.) Rhizome short, 

 branched, creeping, the younger 

 branches paleaceous with ferruginous 

 subulate scales, stipes subaggregated, 



4-5 inches long, nearly glabrous, NIPH obolus stigmosus. [Sw.) 

 fronds 24-30 inches long, 4-5 inches 



wide, broad-lanceolate or oblanceolate, sharply acuminated below, 

 gradually and much attenuated upon the stipes, glabrous above, 

 minutely sellate-tomentose beneath, the tomentum thin, firm and 

 close so as to appear subfurfuraceous or compactly pannose of a 

 whitish colour, costa stout, costules evident but not elevated; vena- 

 tion indistinct, quite that of true Campyloneuron, the areoles from 

 15-20 in a series between the costa and the margin, each with 

 numerous (8-9) included free or scarcely anastomosing soriferous vein- 

 lets; sori rather small, elevated, subglobose (not in the least sunk), 



N?I78. 



NIPHOBOLUS STIGMOSUS. 



