22. DRYOPTEKIS. § 1. LASTREA. 149 



simple. Sori costal; indusium persistent, usually reniform, but some 

 smaller ones athyrioid. 

 Mindanao. 



(6rt) ». badia. v. A. v. n., in Bull. Btz., 1914, XVI, 9. 



Rhizome short, scaly, the scales dense, linear-subulate, castaneous, 

 glossy. Stipes aggregate, ± 15 — 35 cm. long, purple-brown, and glossy, 

 as in the rachis, deciduously hairy and scaly in the lower part, at length 

 naked, the hairs moderately long, ferrugineous, articulated. Fronds 

 lanceolate, + 30—35 cm. long, 8—10 cm. broad, 2-pinnatifld, acuminate, 

 the rachis hairy above, the hairs dense, uncinate, red-brown. Pinnae 

 numerous, approximate or somewhat remote ; central pinnae largest, 

 spreading, subfalcate, petiolulate, to 5 cm. long, + 1 '/j cm. broad at 

 the subtruncate or subcordate base, the edge cut ± '% — Vs-^^a-Y down 

 to the costa in the lower part, coarsely crenate at the acuminate apex; 

 lower pinnae horizontal, lowest deflexed, abbreviated. Lobes oblong or 

 linear-oblong, the largest 3 — 4 mm. broad, close, straight or subfalcate, 

 blunt or bluntish, subentire. Texture firm, chartaceous; surfaces naked; 

 costae more or less hairy above; main veins pinnate; veins 4 — 5 on 

 each side in the largest lobes. Sori medial or lower on the veins; 

 indusium naked, dirty-brown, often persistent. 



Sumatra. 



(7) n. crassifolia. o. Ktme. 



¥ai*. Mlofleyana: Also in Negros. 



(7a) ». pcrsquamifera. ». A. «. «., in Bull. Btz., I.9i#, XVI, 10. 



Stipes 35 — 40 cm. or more long, densely scaly, as is the rachis, the 

 scales squarrose, lanceolate-subulate from a broad base, entire, acuminate, 

 pale-fuscous, of the stipe persistent, of the rachis rather deciduous, the 

 lower the largest, with a thickened base leaving the stipe rough when they 

 fall, intermixed with much smaller ones, the higher growing gradually 

 smaller, intermixed with numerous pale, crisped hairs, the hairs of the 

 upper side rather persistent, those of the lower side rather deciduous. 

 Fronds lanceolate, + 50 — 55 cm. long, 20 — 25 cm. broad, acuminate, 

 slightly narrowed at the base. Pinnae ± 20 pair below te pinnatifld 

 apex, linear-subulate, sessile, horizontal or nearly so, remote, te largest 

 ± 10 — 12 '/j cm. long, I72 — 2',j cm. broad at the base, acuminate, the 



