25. ASPIDIUM. § 1. TECTABIA. 2S1? 



10 — 13 c.M. long, the upper side deeply scalloped. Texture rather coriaceous ; 

 surfaces naked except the main veins which are zigzag and tolerably prominent 

 nearly to the margin; areolae rarely with free veinlets. Sori very small, 

 numerous, scattered, generally on connected veinlets, 

 Malacca. 



{6b) A., oligophyllum, Mtst., Fed., Rep., Y, 15. 



Stipes tufted, 1 M. long or longer, straight, erect, clothed towards the 

 base with lanceolate, long-acuminate, ferrugineous scales 1 c.M. long. Fronds 

 to 50 c.M. long, 20 c.M. broad, pinnate (quinate). Pinnae simple, elongate- 

 ovate, the lateral ones erecto-patent, more or less incurved, the base cuneate, 

 the margin entire or obscurely repand, the apex long-cuspidate, lowest pinnae 

 subopposite, + 30 c.M. long, + 7 c.M. broad, short-stalked, the stalks slightly 

 marginate, highest pinnae sessile, smaller than the lowest ones, the very base 

 decurrent, terminal pinna largest, the base long-decurrent, sometimes joining 

 with the next following ones. Texture membranaceo-chartaceous; rachis 

 naked, livid-brown, glossy, canaliculate above ; surfaces naked ; costae and veins 

 stramineous, + prominent beneath; main veins erecto-patent, nearly straight, 

 upcurved towards the apex; primary areolae subquadrangular, in + 9 rows 

 on each side, divided into subhexagonal or irregular smaller ones, with 

 copious included free veinlets Fertile pinnae narrower than the barren 

 ones. Sori large, numerous, compital, in . ± 18 longitudinal rows, 4 — 5 

 to a row (in 4 — 5 rows between the main veins.''); indusium persistent, 

 afterwards corrugate. 



Sumatra. 



* (7) A.. Haenkei, JPf., Mett., Ann. Mus. Bot. L. B., I, 238. 



Rhizome? Stipes ±15 c.M. long or longer, stramineous like the rachis. 

 Fronds 30 c.M. long or longer, + 20 c.M. broad, broadly oblong, pinnate 

 with 4 or more pinnae on each side below the terminal one. Terminal pinna 

 oblong, sinuate or subpinnatifid, the base cuneato-rotundate, lateral pinnae erecto- 

 patent, to 15 C.M. long, + 3 c.M. broad, lanceolate-oblong, acuminate, falcate, 

 narrowed at the base, or the upper base cuneate or truncato-rotundate and 

 the lower one rounded, higher pinnae adnate to the rachis, the lower ones 

 short-stalked, unequal-sided, sub-2-fid. Texture rigidly membranaceous; sur- 

 faces naked, or the upper one short-hairy on the costae only; main veins pro- 

 minent, erecto-patent, upcurved; areolae in 4—5 rows on each side of the 



