﻿8^ HYMENOPHTLLUM. ^ 2. LEPTOCIONIUM. 



oblong, deeply cleft with linear, flabellate or pinnatifid pinnulae. Ultimate 

 segments toothed and crisped. Sori ± 1 — 2 to a pinna, occupying the 

 anterior pinnulae, terminal on short lobes; indusium ovate, divided about ^3 

 of the w^ay down, surrounded at the base by broad, deeply and irregularly 

 spinoso-dentate transversal crests, the valves toothed or serrate towards the apex. 

 Trop. Asia. 



* (42) H. aciileatuiii, ttac, (not Sm.), Flor. Btz., I, 21, p. p., H. 



aculealum, Bedd. (not V. D. B.), Handb. Ind. Ferns, Suppl., 8, p. p. Leplocio- 

 nium aculeatum, V. D. B., Hymen. Jav., tab. XXXI. 



Like H. denticulatum, Sw., but smaller. Fronds 2 '/a — S c.M. long, ± 

 2 */j c.M. broad, the indusium not so deeply divided ( ± '/s of the way down), 

 the lips with the outer edge sharply toothed. 



Malaya; Ceylon. 



(45) H. biiiiiiarckianuiii, Christ, Sebum, k Laut., Flor. deut. 

 Sch. geb., Suppl., 34. 



Near H. denticulatum, Sw., but 3 X larger. Sori not axillary but ter- 

 minal on the segments, roundish, minute, blackish-brown; valves of the in- 

 dusium entire, not spinose. 



New Guinea. 



(44) H. brachygloissuni, A. Br., Kze, Bot. Zeit., i847, 227; 

 Leptocionium Braunii, V. D. B., Hymen. Jav., 43, tab. XXXIII. 



Rhizome creeping, filiform, nearly naked. Stipes scattered, filiform, naked, 

 2 — 4 c.M. long. Fronds lanceolate or lanceolate-oblong, 3 — 6 c.M. long, 1 — 2 

 c.M. broad; main rachis winged throughout. Pinnae slightly crisped, cut 

 down to a winged rachis into simple or sometimes forked pinnulae. Ultimate 

 segments linear, toothed and ± crisped. Sori 1 — 2 to a pinna, occupying 

 mostly the anterior side of the higher pinnae; indusium oblong, divided ± 

 '/s-way down, the base surrounded by a row of rather close, repand, longitu- 

 dinal crests, the valves ± truncate or rounded and toothed at the apex. 



Java, Borneo. 



Sori marginal, terminal on the veins. Indusium tubular, cupuliform, ob- 

 conical or turbinate, of the same texture as the frond, exserted or more or 



