﻿28 2. HEMITELIA. § 2. AMPHICOSMIA. 



linear-Gliform segments. Fronds ample, 2 — 5-pinnate. Pinnae petiolate, ovate- 

 oblong. Pinnulae subsessile, 5 — V'/i c.M. long, I'/a — 2 c.M. broad, oblong, 

 acuminate, deeply pinnatifid or pinnate again. Ultimate segments linear-oblong, 

 acute, strongly serrate. Texture membranaceo-papyraceous ; rachises and costae 

 clothed beneath with scattered, deciduous, bullate scales; veins simple, 1 to 

 each serrature. Sori freffuently solitary at the base of the ultimate segments, 

 rarely 3 — 4; receptacle large, prominent; indusium brown, fimbriate. 

 Java, South. Africa, Brasilia. 



* (3) H. •Bungliuliniana, Mett., Rac, Flor. Btz., I, 38; Also- 



phila Junghuhniana, Kze, Bot. Zeit., i848, 284; — var dissolula, Rac, 1. c. 



Stipes aculeate at the base. Fronds 3-pinnalifid or 3-pinnate; main 

 rachis deciduously tomentose. Pinnae lanceolate-oblong, to ± 60 c.M. long. 

 Pinnulae sessile or subsessile, 5 — 10 c.M. long, ± 1^2 c M. broad, linear- 

 lanceolate, acuminate. Ultimate segments free or slightly joined at the base, 

 2 — 5 m.M. broad, linear-oblong, straight or subfalcate, bluntish, the edge crenate, 

 toothed or lobod. Texture membranaceous to chartaceous; secondary rachises 

 tomentose; colour deep-green above, paler beneath; under surface + hairy or 

 scaly on the costae and costulae, the scales mostly deciduous ; upper surface 

 naked or hairy on the costae; veins 6 — 9 on each side, forked, the highest 

 simple. Sori 1 — 4 on each side, occupying the lower veins, ± costular. 



Var. diiSisoluta : Ultimate segments 1 — 5 m.M. apart. 



Java, Sumatra. 



* (4) H. litiinatrana, v. A. v. Jt. 



Fronds 3-pinnatifid, sub-3-pinnate ; main and secondary rachises muricate 

 with numerous, short, sharp, dark-tipped warts, densely but rather deciduously 

 furfuraceo-tomenlose and purveyed with many, deciduous, linear, spreading 

 scales, the main one rough between the warts. Pinnae ± 55 c M. long, 

 stalked. Pinnulae linear-lanceolate, short-acuminate, 8 — 12 c.M. long, ± 2 

 c.M. broad, deeply pinnatifid, pinnate at the base. Ultimate segments linear- 

 oblong, subacute, + 2^2 m.M. broad, the lower ones free, the edge + crenato- 

 dentate. Texture chartaceous, fragile when dry ; colour dark above, paler 

 beneath : upper surface piloso-tomentose on the costae ''tertiary rachises), under 

 one densely scaly on the costae and costulae; veins 1 — 2 X forked. Sori 

 1 — 4 on each side, subcoslular, occupying the lower veins, densly mixed with 

 the fimbriated scales; indusium brown. 



Sumatra, (Teysmann, No. 2436). 



