﻿78 8. HYMENOPHYLLUM. § 2. LEPTOCIONIUM, 



side. Lacinulae subfastigiate, narrow, linear, flat, the margin serrate, the 

 teeth remote, subulate, elongate. Texture membranaceous, rather firm ; colour 

 reddish-brown, subopaque. Sori small, terminal on the frond; indusium 

 tubular, compressed, 2-fid ± to the base, the valves truncate-rotundate and 

 unequally subulate-dentate at the outer edge; receptacle setiform, thick. 

 Malaya; Assam. 



(29) H. tiinbrid^ense, Sm., Hk. Bk., Syn. Fil., 67; Hk., Br. 

 Ferns, tab. XLIII; Bedd., Ferns S.I., tab. CGLXV; Bau. & Hk., Gen. Fil., 

 tab. XXXII. 



Stipes 1 — 4 c.M. long, winged in the upper part. Fronds oblong-lanceolate, 

 %% — 8 c.M. long, 1 — 2'/2 c.M. broad; main rachis winged throughout. Pinnae 

 distichous, subllabellato-pinnatifid, the lobes ^'/j — T% m.M. long, and (as well 

 as the usually, solitary, axillary, suborbicular indusia) spinuloso-serrate. 



In the temperate climates and the cool, alpine regions of the tropics. 



* (30) H. holochiliiin, C. Chr., Ind. Fil.; H. affme, Rac. (not 

 V. D. B.), Flor. Btz., I, 20; //. Smithii, Hk., Hk. Bk., Syn. Fil., 69, p. p.; 

 Leptocionium holochiliim ^ affine, V. D. B., Hymen. Jav., tab. XXXIV— XXXV. 



Rhizome slender, filiform, sparingly hairy. Stipes filiform, 2 — 5 c.M. 

 long. Fronds oblong to lanceolate-oblong, 4—10 c.M. long, 1 '/^ — o'/i c.M. 

 broad; main rachis winged throughout or in the upper half only. Pinnae 

 cut down to a winged rachis into 1 — 4 simple or forked pinnulae. Ultimate 

 segments + 2 m.M. broad, the margin toothed. Sori 1 — 4 to a pinna, 

 terminal on short lobes, occupying the anterior side of the higher pinnae; 

 indusium obovate-oblong, the base ± obconical, surrounded by a row of 

 longitudinal crests, the valves blunt, more or less distinctly denticulate, 

 or quite entire. 



Java. 



« (51) H. blandum, Mac, Flor. Btz., I, 20. 



Rhizome filiform, sparingly hairy. Stipes I'/i — 2'/j c.M. long, filiform, 

 very slender. Fronds irregularly obovate, 2 — 4 c.M. long, 1 — 2 c.M. broad, 

 simply pinnate or 2-pinnatifid, the rachis at best winged above. Lower 

 pinnae short-stalked, often forked or pinnatifid, the higher ones commonly 

 undivided, sessile with a narrowed base. Ultimate segments from 1 — 10 m.M. 

 long. Sori terminal on the segments ; indusium oblong, the valves with the apex 

 blunt and toothed. 



Java. 



