﻿448 S5. ASPLENrUM. § 3. EU-ASPLENltlM. 



^. Lower pinnae gradually reduced. 



(37) A. borneense. 

 ^.^. Lower pinnae not reduced. (38) A. tenerum. 

 /3.|3. Pinnae blunlish or acute at the apex (*). 



7. Fronds small or middle-sized, under 50 c.M. long. 

 (?. Fronds narrow, under iO c.M. broad. 



s. Pinnae inciso-crenale, blunlish or acute. 



(39) A. lunulatum. 

 s.e. Pinnae coarsely crenate, acute. 



(40fl) A. Steerei. 



s.s.s. Pinnae coarsely 2-dentate, acuminate. 



(406) A. Meyenianum. 



S.S. Fronds broader, more than iO c.M. broad 



when fully developed. (41) A. prionurus. 



7.7. Fronds large, more than 50 c.M. long when 



fully developed. 



+. Pinnae 2 — 3^j^ c.M. broad ; sori occupying 

 the lower half of the veins. 



(42) A. griseuni. 

 4.+. Pinnae narrower; sori reaching nearly to 

 the edge. (43) A. persicifolium. 



1.1. Texture chart iceous to coriaceous. 



2. Higher sori subparallel and nearly close to the coslae. 

 §. Pinnae more or less deeply lobed, the lohes + 

 rounded, entire or bluntly crenate, the higher lobes 

 not rarely tooth-like. 



•^. Fronds small, under i5 c.M. long, under T^l^ 

 c.M. broad. Pinnae bluntish or subacute. 



(44) A. Schoggersii. 



f ••{•. Fronds larger, more than 15 c.M. long, more 



than 7^1^ c.M. broad. ■ Pinnae long-acuminate. 



(45) A. caudatum. 



$.$. Pinnae serrate, broadly crenate or + deeply lobed, 



the crenations or lobes sharply serrate or toothed. 



X. Pinnae 4 — 7*/^ c.M. long, with the upper 



base suddenly cuneate. (46) A. contiguum. 



(*) See also under A. tenerum, Forsl, 



