APPENDIX. 3. ALSOPHILA. 493 



(276) A. benculensis, v. a. ». jr., in Bull. Btz., 1916, XXIII, 2. . 



Stipes to + 30 cm. or more long, like the main rachis black-purple- 

 brown, aculeate with short, acute warts, above scaly, otherwise fur- 

 furaceous, the scales gradually long-filiform or piUform from a subulate 

 base, dark-purple-brown, sparingly ciliated, the lower copious, the higher 

 more scattered (deciduous?), the furfur ferrugineous. Fronds + 130 cm. 

 broad, 3-pinnatifld, sub-3-pinnate. Pinnae spreading, the largest ovate- 

 lanceolate, ± 25 cm. broad at the middle, acuminate, somewhat narrowed 

 at the base, the lower remote and gradually much reduced; rachis 

 deciduously scaly above, tomentose beneath, the scales scattered, filiform 

 or piliform, dark, the tomentum ferrugineous. Pinnulae horizontal, 

 lanceolate, the higher sessile, the central the largest, the lower short- 

 stalked and somewhat abbreviated, the largest ± 2 — 2'/2 cm. broad, 

 deeply pinnatifid, bluntly serrate-dentate at the acuminate apex, slightly 

 narrowed at , the base ; costa naked above, beneath tomentose with 

 interlaced but not crowded, crisped, brown hairs, the tomentum intermixed 

 in the lower part with copious erected, dark, lanceolate squamules. 

 Segments spreading, falcate, the largest + 2^2 — 3 mm. broad, separated 

 by a blunt sinus at the dilated base, crenulate, or bluntly crenate-dentate 

 at the blunt or bluntish apex, the lowest free and more or less abbrevi- 

 ated. Texture coriaceous; surfaces, costulae and veins naked; upper 

 surface when dry dark-olivaceous, lower paler; veins to + 11 — 12 on a 

 side, forked, the higher simple. Sori subcostular, to + 6 on a side, 

 occupying the lower veins; spurious indusium moderately large, shallowly 

 saucer-shaped. 



Sumatra. 



(32) A. tonientosa, Uk. 



Scales not rarely deciduous in age, partly linear-subulate, flat, and 

 ciliolate with short, ascending, acute, red-brown hairs, partly ovate, sub- 

 buUate, conspicuously ragged. 



(43) A. palenibanica, v. A. v. n., in Bull. Btz., 1916, XXIII, 4. 



Fronds 3-pinnatifid, the rachises above naked, beneath when young 

 ferrugineo-lanuginoso-tomentose, at length not rarely naked; main 

 rachis muriculato-asperulous, when dry castaneous in the lower part, 

 otherwise fuscous, as are the sparingly asperulous secondary ones. 

 Pinnulae remote, the largest horizontal or spreading, shortly petiolulate. 



