84 9. TBICHOMAHES. 



;ic. Cephalomanes. Fronds simply pinnate; pinnae ± oblong, rathei 



broad, the base cuneate or rounded. 

 ^.;);. Trichomanopsls. Fronds at least 2-pinnatifid; ultimate seg- 

 ments linear or oblong, narrow, the base neither cuneate nor 

 rounded. 

 § 3. LEPTOMANES. Fronds uniform, the fertile ones not spicate. Ultimate 

 segments capillary, whether or not narrowly marginate (not visible except 

 under magnifying power). Christ, 1. c, fig. 68. 



Key to the malayan sections and groups. 

 [Fronds uniform). 



1. Ultimate segments flattened, often narrowly linear but not capillary. 



§ 2. EUTRICHOMANES. 

 S. Fronds simple or slightly lobed. § % h. Heiniphlebium. 



2.9. Fronds di^tided. -.-^i <:<„ r""/ ^^ j^Cy i^ c-x. ^~Z'^ 



3. Fronds flabellato-digitate; segments simple or once or more 

 times forked, the central segment not rarely elongate and pin- 

 natifid. § 2, c. Oonocormus. 



3.3. Fronds pinnately divided. 



4. Cells of the texture transversally oblong, placed in obliquely 

 longitudiqal (ladder-shaped) rows. § 2, e. Abrodictyum. 

 4.^. Cells of the texture roundish, oblong, quadrangulai', sub- 

 hexagonal, &c, but not as in 4,. 



S. Main rachis winged throughout or towards the base 



only. § 2, d. Ptilophyllum. 



5.5. Main rachis not winged, or winged towards the apex 



only. § % f. Liacostea. 



e. Fronds simply pinnate; pinnae + oblong, rather 



broad, the base cuneate or rounded. 



§ 2, f*. Cephalomanes. 



e.e. Fronds at least 2-pinnatifid; ultimate segments 



linear or oblong, narrow, the base neither cuneate 



nor rounded. § 2, f**. Trlchomanopsis. 



±.£. Ultimate segments capillary, whether or not narrowly marginate. 



S 3. LEPTOMANES. 



