APPENDIX. 3. ALSOPHILA. 495 



intermixed with brown, fine, articulated hairs not surpassing the capsules ; 

 spurious indusium consisting of a whorl ot pale fibres. — Stipe and 

 main rachis unknown. Probably near A. giauca J. Sm. 

 Buru. 



(45) A. lastreoides, «-. A. v. JR., in Bull. Btz., 1916, XXIII, 5. 



Pinnae to 40 cm. or more long, acuminate, to rachis naiTowly winged 

 in the upper part, above brown-hairy like the costa, beneath roughish 

 with scattered, minute pustules, when young provided with scattered, 

 ferrugineous, entire, subulate squamules dilated at the cordate base. 

 Pinnulae close, the higher ascending, adnate, the following sessile, growing 

 gradually larger, horizontal, the largest to 8 cm. long, to 1'/^ cm. broad 

 at or near the truncate base, deeply pinnatipartite, narrowed gradually 

 towards the serrate, acuminate apex, the lower shortly petiolulate, some- 

 what deflexed and abbreviated, the costa squamulose beneath, the scales 

 acuminate, the lower subulate or lanceolate, ferrugineous, the following 

 growing gradually smaller, ovate and paler. Segments spreading, rather 

 straight, close or nearly so, to 2^2 — 3 mm. broad, shghtly narrowed near 

 the base, serrate towards the blunt apex, otherwise twice serrulate, the 

 costula naked above, minutely pale-buUate-squamulose towards the base 

 beneath, the veins to 9 on a side, the higher simple, the others forked, 

 rarely 3-furcate. Texture papyraceous; surfaces naked; under surface 

 when dry more or less olivaceous or apparently glaucous. Sori to + 4 

 on a side, subcostular or nearly medial, occupying the lower veins; 

 capsules intermixed with pale, articulated hairs not longer than the cap- 

 sules. — Stipe and main rachis unknown. 



Batu. 



4. OICKSOr^IA, VH^fitier. 



(1) O. Bluiuei, Moore. 



Also in Neio Guinea (t. Ridl.). 



(3) D. sorbifwlia, Sm. 



Pinnulae subcoriaceous to firm-coriaceous, the lowest anterior often 

 the largest, the lowest posterior often abbreviated ; edges crenulate towards 

 the base ; veins mostly forked ; sori exserted, terminal on the teeth ; 



