3. ALSOPHILA. 57 



blunt, crenated pinnulae to 1 cm. long, cuneate at the base. Fronds 

 3-pinnatifid, the rachises dark-brown or publish, deciduously chaffy, 

 giabrescent, dark-tomentose above. Pinnae short-stalked, lanceolate, to 

 + 50 cm. long, to + 20 cm. broad, somewhat narrowed at the base. Pinnulae 

 horizontal, short-stalked, dimorphous; barren pinnulae lanceolate, the 

 largest ± l',j — 2 cm. broad, acuminate, cut + '/i — '/s-'^ay down to the 

 costa, the base somewhat narrowed, truncate-cordate, the lobes spreading, 

 blunt, crenated, the lowest horizontal, rounded at the lower base; fertile 

 pinnulae contracted, linear-lanceolate, '/^ — 1 V, cm. broad, with the lowest 

 lobes nearly free, round or short-oblong. Texture coriaceous ; surfaces naked ; 

 costae and costulae dark, above naked or hairy, beneath sparingly minutely 

 scaly; veins simple, + 4 — 8 on a side, those of the fertile lobes the 

 less numerous. Sori costular, the capsules probably intermixed with 

 hair-like paraphyses. 

 Sumatra. 



(8) A. obsciira, Scort.; Oyathea obscura, Copel., in Philipp. Journ., 

 IVC, 37. 



Stipes muriculato-asperulous, upward deciduously furfuraceous, down- 

 ward densely scaly, the scales somewhat crisped, rather deciduous, pale, 

 often brown-margined, copiously serrulate-ciholate with short, suberect, 

 acute, dark-brown hairs; rachises smooth, above dark-tomentose, beneath 

 probably sparingly pale-long-hairy when young; lobes nearly straight, 

 blunt or obliquely subtruncate ; veins prominent on both sides ; sori at 

 length confluent so as to form broad brown bands on each side of, and 

 rather close to, the costae. 



{8a) A. isubobiseura, v. A. v. n., in Bull. Btz., 1915, XX, "1, 

 tab. I. 



Trunk to 6 m. or more high. Stipes muricato-asperous, densely scaly, 

 the scales long, subulate-lanceolate, scariose, very pale-stramineous, finely 

 acuminate, often brown-margined, copiously serrulate-ciliolate with sub- 

 erect, short, acute, dark-brown hairs. Fronds 3-pinnatifid, to about 80 

 cm. broad; rachises copiously punctulato-asperulous, above dark-villose- 

 tomentose, beneath when young probably furfuraceous with very minute 

 fimbriate-stellate brown scales, the sides deciduously scaly with scales 

 similar to those of the stipe but smaller. Pinnae spreading, the largest 

 lanceolate, to 45 cm. long, 10 — 15 cm. broad, somewhat narrowed at the 



