!3Q 



Ferns of British India and Ceylon. 



forming as many arched series between the costules as there are 

 areoles. Hook. Sp. Fil. v. 52. Bedd. F. B. I. t. 259. 



Bhotan and Mishmee. The areoles are much more numerous 

 than in stigmosus, and the included veinlels also more numerous, but 

 much less anastomosing, the fronds in my specimens are of thinner 

 texture, the veinlets being visible (without soaking the frond). 



8. Niphobolus fissus. {Bl.) Rhizome creeping, paleaceous 



with ferruginous scales, stipes ag- 

 gregated short scarcely any or 3-5 

 inches long, and then winged or 

 margined to the base ; fronds car- 

 nose-coriaceous 6 inches to a foot 

 and more long, \ an inch to i-if 

 inch wide, lanceolate or linear-lan- 

 ceolate or even linear, often finely 

 acuminated, the margin quite entire 

 (or rarely spuriously and very un- 

 equally pinnatifid with remote long 

 and narrow segments), from near 

 the middle gradually attenuated 

 downwards to the caudex, at first 

 wholly tomentose with ferruginous 

 stellated hairs, at length glabrous 

 on the upper side and depressed- 

 punctate, the dots corresponding 

 with the sori ; venation quite sunk, 

 veins pinnate but not prominent, venules transversely parallel and 

 forming with the veins parallelogrammoid areoles (about five between 

 costa and margin), with two, sometimes only one, excurrent free 

 clavate veinlets in each areole ; sori copious and at first quite sunk 

 among the tomentum appearing in the form of small tubercles, at 

 length a circular opening appears, but the sori scarcely rise above the 

 surface of the tomentum, arranged in series. BL, Fil. Jav. p. 58, t. 

 24. Niph. porosus, Hook. Sp. Fil. v. 48. Bedd. F. S. I. t. 183. 



N?I79, 



NIPHOBOLUS FISSUS. 



(Bl. 



