7o Ferns of British India and Ceylon. 



brilliant green in colour (even when dried), cut down about 

 two-thirds towards the rachis, the narrow interspace being filled 

 up with a transparent membrane, lobes oblong, rounded at the 

 apex, but with a sudden mucro ; veins about 12 pair, prominent 

 above, and raised and very prominent on the underside, the lower 

 pair anastomosing at a very obtuse angle below the membrane, 

 the next 5-6 pair anastomose in the membrane ; sori small 

 medial. Forked or even pinnate veins are often present in the 

 lowest lobes of the pinnae which often anastomose towards the 

 margins, and sometimes these forked anastomosing veins appear in 

 many of the lobes all along the pinnas. 



Assam, Ealipara Forest, Darrang {Mann) ; Nepal ( Walh'ch, 

 Cat. 342 venulosum in part, Kew Herbarium, a name already 

 occupied) ; Kullu, Upper Biso Valley {Trotter) ; near aridum, but 

 pinnae of a different texture, much broader and more glabrous, 

 it is still nearer callosum (Blume), which, however, has a large 

 gland at the base of the pinnae, and often also at the base of the 

 main vein of the lobes. 



9. Nephrodium glandulosum. {Bl.) Rhizome erect ; stipes 

 tufted up to 2 feet long, slightly villose ; fronds 1 foot or more 

 long, 4-6 inches, rarely more, broad, with 2-9 spreading elliptic- 

 oblong, very suddenly pointed pinnae on each side, those of the 

 barren fronds the largest often distant, and only 2-3 on a side, 

 2-3 inches long, and up to 2 inches broad, the margin entire 

 or slightly lobed, generally quite sessile, rarely slightly petioled, 

 the base abruptly truncate and parallel with the main rachis, 

 often more or less auricled at the superior margin, texture firm- 

 herbaceous, generally somewhat villose on both surfaces, and 

 sometimes glandular below ; fertile pinnae about 6 on a side, 

 generally considerably contracted, but sometimes the larger uncon- 

 tracted pinnae are soriferous ; veinlets 10-12 pair in the larger 

 fronds, nearly all anastomosing ; sori medial on each veinlet, 

 involucre generally ciliate at the margins, fugacious, the sori 

 eventually elongating and meeting, covering the whole of the 



