448 55. ASPLENItJM. § 3. EU-ASPLENIDM. 



j)c. Lower pinnae gradimlly reduced. 



(57) A. borneense. 

 :(:.*. Lovi'er 'pinnae not reduced. (38) A. tenerum. 

 p.jS. Pinnae blunlish or acute at the apex (*). 



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

 S. Fronds narrow, under iO c.M. broad. 



£. Pinnae inciso-crenale, blunlish or acute. 

 (59) A. lunulatum. 

 s.s. Pinnae coarsely crenate, acute. 



(40fl) A. Steerei. 



e^.s. Pinnae coarsely Edentate, acuminate, 



(406) A. Meyenianuiu. 



S.3. Fronds broader, more than iO cJf. broad 



when fully developed. (41) A. prionurus. 



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



fully developed. 



+. Pinnae 2 — S'/j c.M. broad; sori occupying 

 the lower half of the veins. 



(42) A. griseuni. 

 -i .+. Pinnae narrower; sori reaching nearly to 

 the edge. (45) A. persicifolium. 



1.1. Texture chart iceous to coriaceous. 



2. Higher son 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. /ik^Xst^o^ e^ij>-<><r- 

 ■^. Fronds small, under i5 c.M. long, under 7\ 

 c.M. broad. Pinnae blunlish or subacute. 



(44) A. Schoggersii. 



•{•.•j-. Fronds larger, more than 45 c.M. long, more 



than 7*/j c.M. broad. Pinnae long-acuminate. 



(45) A. caudatum. 



§.§, Pinnae serrate, broadly crenate or ± deeply lobed, 



the crenatwm or lobes sharply serrate or toothed, j 



X. Pinnae 2—7^^ c.M. long, with the upper 



base suddenly cuneale. (46) A. contiguum. 



(*) See also under A. tenenun, Forst, 



