FERNS OF BORNEO. 41 



the base, where they have a tuft of large brown hnear scales. 

 Lamina oblong- deltoid or deltoid, simply pinnate, one foot to one 

 and a half long, with an end pinna like the side ones. Pinnae 

 thirteen to twenty-five, subsessile, lanceolate, reaching a length of 

 eight to nine inches, and a breadth of nine to fifteen Imes, toothed 

 and much acuminated at the j)oint, cuneate at the base. Texture 

 subcoriaceous. Both surfaces glabrous and free from scales. 

 Veins in the fully developed pinnae in pinnate groups of three to 

 four. Sori running all the way from the midrib to the edge, few 

 diplazioid. Involucre narrow, glabrous, persistent. — Comes near 

 A. pallidum, jjorrectum, and cultratum. 



-''Asplenium latifolium, Don. 

 Aspleniu7n cordifolium, Mett. 



^^Didi/mochl(S7ia lunulata, Desv. 



"^'Aspidium aculeatum, Sw. 



'^'Nephrodium calcaratum, Hook. 



"^^Nephrodmm jjteroides, J. Sm. 



'^Nejjhrodium unitum, R. Br. 



"^^Nephrodium cucidlatum, Baker. 



"^^Nephrodium near pennigermn ? Probably new, but specimens 

 not complete enough to characterise it. 

 Nephrodium molle, Desv. 



-''Neiihr odium Haenkeanum, Presl. 



^NepJu'odium singaporianum, Baker. 

 Nephrodium tematum, Baker. A fine series of specimens of this 

 endemic species. 



219.* Nephrodium (Sagenia) nudum, Baker, n. sp. Rhizome not 

 seen. Stipe about two feet long, pale brown, naked. Frond 

 oblong-deltoid, one and a half to two feet long, a half to one foot 

 broad, with nine to eleven distant pinnae, the lowest two to four (_^ 

 two- or three-forked from the base, the rest simple ; the end one 

 like the others, but larger, lanceolate, six to twelve inches long, 

 three-quarters to one inch broad, very acuminate, narrowed 

 gradually to the base, not rej)and, all except the lowest sessile. 

 Texture membranous. Both surfaces and rachis fi'ee from hairs 

 and scales. Main veins erecto-iDatent, distinct to the edge at a 

 distance of a quarter to one -third of an mch from each other ; 

 copious small irregular areolae between them furnished with free 

 included veinlets. Sori middle-sized, in regular rows near the 

 main veins. Involucre glabrous, persistent. — Allied to X. jjachy- 

 phyllum, Baker. 



'''Nep)hr odium polymorphum, Baker. 

 Nephrolepis volubilis, J. Sm. 

 Polypodium Barheri, Hook. 



PoUjjJodium iirophyllum., Wall. A variety with many of the sori 

 confluent. 



91.'" 'Po-LYPODivisi(?Aipolypodium)MmiMVM, Baker, n.s]). Densely 

 tufted. Fronds simple, sessile, ligulate, half to one inch long, /^ 

 under a hne broad, entire, obtuse, subcoriaceous in texture, glabrous 

 on the upper surface, slightly pubescent beneath, narrowed gradu- 

 ally from the middle to the base. Veins simple, erecto-patent, 



