68 Ferns of British India and Ceylon. 



This has the venation of molliusculum, but differs in its 

 deltoid form, narrower pinnae, in its lower pinnules being dwarfed 

 or uniform in size instead of being enlarged, and in the absence of 

 needle-like hairs ; it differs from extensum in the lower anasto- 

 mosing veins being straight, anastomosing in a very obtuse angle 

 instead of being semicircular and anastomosing at a very acute 

 angle at the apex ; the fertile fronds are sometimes on elongated 

 stipes ; golden pubescence or golden dots are often present, and it 

 has then been called aureum, 



5. Nephrodium molliusculum. Wall. Cat. 332. Nephro- 

 dium extensum var. microsorum [Clarke). N. microsorum 

 {Handbook). N. Hopei [Baker, Ann. Bot. 189 1). Also Wall. Cat. 

 349, third sheet. 



Dehra Dun, 1,500 feet alt. [Hope) ; Munipore ( Watt) ; Kohima. 

 5,000 feet alt. [Clarke as extensum in Linn. Jour. xxv.J>. 95.) 



Nephrodium biauritum. [n. sp.) Rhizome wide-creeping, 

 about 2 lines thick ; scales few, linear-lanceolate, early deciduous ; 

 stipes ij to ii inches apart, glabrous stramineous 8-9 inches 

 long ; fronds narrow oblong or lanceolate, i-ij feet long by 

 5-7 inches broad, pinnate-bipinnatifid the lowest pair of pinnae 

 generally slightly reduced in size ; pinnae patent, 14-17, sub- 

 opposite pairs rather distant from each other, -f-i inch broad, cut 

 down half way or three-quarters into lanceolate rather acute 

 entire lobes, the lowest superior lobe of the lowest or 2-3 lower 

 pinnae produced into a long pinnatind auricle ; texture firm, 

 herbaceous ; above, rachis of pinnae and midrib hairy, the veins 

 and lamina with a few minute hairs ; below, rachis and veins 

 with rather long white hairs, lamina minutely glandular ; 

 veins simple, about 12 pair, excurrent at margins, the lowest pair 

 only anastomosing at a very obtuse angle, forming a long narrow 

 arch nearly parallel with the rachis, with a long veinlet excurrent 

 at the sinus ; sori medial ; indusium small, very fugacious. 



Dubri, Assam plains, Chur lands, subject to inundation. 

 (Mann.) It has quite the habit of Gymnogramme aurita, which 



