133 



creeping horizontally, young frond-buds clothed with small 

 black subulate scales, fronds sparse but approximate, sti- 

 pites 4 inches to a span long scaly at the base and as well as 

 the slender rachis purple-ebeneous glossy, fronds oblong or 

 linear-lanceolate 6-12 or 14 inches long much acuminate 

 membranaceous dark-green subtransluccnt pinnated, pinnaj 

 very numerous approximate horizontally patent 1-1 ^ i"ch 

 long petiolate (ultimate ones very small and decurrent into a 

 pinnatifid acumen) oblongo-lanceolate generally obtuse di- 

 midiate (the lower half as it were cut off parallel with the 

 rachis in a straight line nearly to the apex), superior base 

 truncate parallel with the rachis not auricled superior margin 

 and apex only deeply inciso- serrate, segments bidentate mo- 

 nosorous, veins forked, sori solitary (rarely two) confined to 

 the marginal serratures or segments small oval-oblong, invo- 

 lucre brown membranaceous entire. (Tab.CLXXV.) — Wall. 

 Cat. n. 218. Moore, Ind. Fil. p. 136. A. cheilosorum, ii>e. 

 in Metten. Asplen. j^. 133. t. 5./. 12, 13 {pinmdes onhj). 



Hab. Nepal, WalUch, 1821. Khasya, Griffith, Hooker and Thomson, n.lSS b. 

 Borneo, //. Loiv, Jun. Moulmeine, Parish, n. 13. Ceylon, Gardner, n. 27, 

 Thivaites. — A most distinct species, very peculiar in the almost entirely dimi- 

 diate pinnffi, thus as it were bringing the costa close to the lower margin, and 

 in having tlie sori apicular on the segments of the superior margin and apex. 

 When there are two sori in the segment, each opens towards the margin. It is 

 remarkable that so few localities are known of this plant, and those for the most 

 part so widely separate from each other ; viz. continental India (Nepal and 

 Khasya), and Ceylon and Borneo. 



92. A. (Euasplenium) lontum, Sw. ; caudex small scarcely 

 subrepent, stipites sparsely ca3spitose slender 4-6 inches long 

 glossy dark-brown, fronds a span long oblong acuminate mem- 

 branaceous subtranslucent pinnated the acuminated apex pin- 

 natifid, pinnse scarcely petiolate numerous horizontally patent 

 the lowest sometimes deflexed 1-1 finch long semiovato-lan- 

 ceolate often subfalcate obtuse or subacuminate superior base 

 truncate parallel with the rachis auricled or subauricled, in- 

 ferior base and often for more than half the length of the 

 pinna cut off as it were with a straight or curved line (so 

 that the costa is here close to the margin), the rest strongly 

 duplicato-serrate or incised, veins forked pinnated in the 

 auricle, sori oblong rather distant, involucres membranaceous, 

 in the auricles opening towards the central vein and some- 

 times diplazioid, rachis brown slightly winged above by the 

 decurrent bases of the pinna). (Tab. CLXXIII.) — Sw. Syn. 

 Fil. p. 79 and 271. WUld. Sjj. PL v. ^.317. Schk. Fil. p. 



