17. NEPHROLEPIS § 2. EUNEPHEOLEPIS. 137 



(10a) 1^. Clemeniis, Christ, in Philipp. Jouni., IIF, 272. 



Rhizome unknown. Stipes 4 — 9 cm. long, terete, stramineous, 

 cliaffy with ochraceous, peltate-ovate scales, as is the rachis. Fronds 

 25 — 40 cm. long, + 4 cm broad, elongate-cordate. Pinnae numerous, 

 close, sessile, ovate-hastate at the base; lower pinnae barren, obtuse, + 

 2 cm. xong, hardly 1 cm. broad, the very lower ones roundish ; fertile pinnae 

 acute, + 2'/2 cm. long, + \^ broad. Texture subcoriaceous; surfaces 

 smooth; colour ochraceous-green, opaque; costae slender; veins numerous, 

 close, obhque, many provided with a terminal, calcareous, dot-like scale 

 on the upper surface. Sori rather marginal; indusium peltato-reniform. — 

 Between N. cordifoha Pr. and N. radicans Kuhn, -with a semi-indefinite 

 growth of the leaf. 



Mindanao. 



(11) M. radicaiiis, Kuhn. 



Scales of rhizome branches lanceolate, entire or hardly ciliolate, 

 castaneous with a ferrugineous margin or ferrugineous with a more or 

 less broad, castaneous, central patch, adpressed; both barren and fertile 

 pinnae bluntly rounded at the apex, or te fertile ones more acute and 

 not rarely more or less falcate, resembling those of N. exaltata Schott. 

 but smaller, and the sori somewhat immersed. 



(llrt?) M. irideiicens, v. A. v. n., in Bull. Btz., 1915, XX, 21. 



Stipes aggregate, + 5 — 12 '/^ cm. long and, like the rachis, dark- 

 olivaceous (often nearly black) and provided with deciduous, dark (often 

 nearly black), iridescent, lanceolate, acute or acuminate, irregularly 

 fimbriate-cihate scales. Fronds linear, more than 40 cm. long in the fully 

 developed plant, ± 3 — 372 cm. broad, narrowed towards both ends. 

 Pinnae horizontal; barren pinnae oblong, the largest approximate, to 1'/^ 

 cm. long by ± 5 mm. broad, blunt or rounded at the apex, broadly and 

 shallowly crenate to serrate-crenate, the base truncate or rather obliquely 

 subtruncate, rather distinctly auriculate on the upper side, less so on the 

 lower side; lower pinnae gradually more remote and auricle-like. Texture 

 coriaceous; surfaces naked; costae somewhat dark-scaly towards the base 

 beneath; veins oblique, forked. Fertile pinnae .... 



Kei Islands. 



(12) M. barltafta, Copei. 



Specimens received from Negros Island differ from Copeland's diagnosis 



