CHAEACTEES OF TRIBES AND GBNEEA. 317 



* Vernation uniserial distant ; sarmentum slender. 

 Sect. 1. — Cheilosoeum, Mett. 

 Fronds pinnate, 6 to 14 inches long ; pinnce numerous, 

 approximate, ^ to 1 inch long, ohlotig lanceolate, dimediate. 

 OosttE excentric, contiguous to the lower entire margin, superior 

 margin deeply laciniated. Sari short, ohlong, on the apex of 

 the vein terminating each lacince. 

 Sp. A. heterocarpum, Wall (v v.) 



Obs. — In the g-eneral outline and glossy texture of the 

 frond this agrees with the Trichomanoid section, but its 

 uniserial vernation and apical sori mark it as being dis- 

 tinct. 



** Vernation fasciculate. 



Sect. 2. — Cbteeachopsis, /. Sm. 



Fronds 6 to 9 inches long, 1 to Ij inch wide, smooth, deeply 

 pinnatifid, lacince uniform, obtuse. Veins dicliotomoushj 

 forked. Sori ohlong linear, the lotoer ones suhparallel loitli 

 the costoi. 

 A. alternans, Wall, (v v.). 



Obs. — Of this species Sir William Hooker says, " this is 

 a very peculiar looking plant, which, but for the absence of 

 the scaly covering, might be mistaken for Asplenium ceterach, 

 which also is known to have a minute asplenoid involucrum, 

 in this species, however, the veins are free." 



Sect. 3. ASPLENITES. 



Vernation erect or decumlent. Fronds simple or pinnate. 



1. Phtllitis Geodp. 

 Fronds entire, linear lanceolate or broad elliptical. 

 A. ensiforme, Wall. ; A. sinuatum, Beauv. (v v.) ; A. 

 squamulatum, Blume (v v. ) ; A. Grifiithianum, Hook. ; A. 

 serratum, Linn, (v v.). 



