50 2. HEMITELIA. § 2. AMPHICOSMIA. 



spreading, + 2^!^ — 3 mm. broad, blunt,, crenate-dentate and recurved at 

 the edge, the lower free, the lowest horizontal, shorter, subpetiolulate. 

 Texture coriaceous ; surfaces naked ; costae and costulae hairy above, the 

 former copiously scaly and sparingly crisped-pilose beneath; veins + 6 — 8 

 on a side, naked, or very sparingly and minutely hairy above, forked, the 

 lowest and higher simple. Sori costular, close, at length confluent; indusium 

 conspicuous, persistent. 

 Sumatra. 



(4d) H. salticola, ». A. ». Jt., in Bull. Btz., 1915, XX, 18. 



Trunk to 1 '/i ni. or more high. Stipes dark-brown, deciduously 

 furfuraceous and copiously spinoso-aculeate. Fronds 3-pinnatifld, sub-3- 

 pinnate; main and secondary rachises brown or pale-brown when dry, 

 muriculate or aculeolate with short, acute warts, dark-tomentose above, 

 deciduously ferrugineo-furfuraceous beneath, the covering when young 

 intermixed with linear-lanc.eolate or subfihform brown scales. Pinnae 

 short-stalked, lanceolate, acuminate, the largest horizontal, about 50 cm. 

 long, 20 cm. broad at the middle, somewhat narrowed at the base. 

 Pinnulae numerous, close or approximate, very shortly petiolulate, the 

 higher ascending, the central spreading, the lower horizontal or somewhat 

 deflexed ; largest pinnulae to about 10 cm. long by 2 cm. broad, deeply 

 pinnatifld, gradually acuminate and crenate-dentate at the apex, the costa 

 villoso-tomentose above, squamulose beneath, the scales pale-ferrugineous, 

 acuminate, partly lanceolate and moderately large, partly buUate and 

 very minute, intermixed with proportionally few crisped, pale-ferrugineous 

 hairs; lowest pinnulae abbreviated, somewhat narrowed at the base. 

 Ultimate segments spreading, close, linear-oblong, to 1 ','4 cm. long, 4 mm. 

 broad, blunt, crenate-dentate; lowest segments free, often abbreviated, 

 somewhat narrowed at the base; sinuses between the lobes piloso-fimbriate 

 in the tip (angle); costulae glabrous or subgiabrous above, minutely 

 buUato-squamulose beneath; veins to 8 — 10 on a side, the higher simple 

 or forked, the others mostly 3-furcate or sparingly pinnate. Texture 

 subcoriaceous ; surfaces naked. Sori subcostular, on the lowest (1 or more 

 lower ?) veins; indusium minute, brown. 



Sumatra. 



(5) H. glniicopliylla, «. A. ». «., in Bull. Btz., 1912, VII, 16. 

 Fronds 3-pinnatifid. Pinnae subsessile, ascending or subspreading, 



