﻿— B — 



h. Sori uniting the tips of 2 or more veins or veinlets. 



*. Fronds pinnate, pinnae articulate to the rachis. 



(No. 17. TSeplivolepis, § Lindsay opsis). 



if.%. Fronds simple or divided, if divided the leaflets 

 not articulate to the rachis. 



No. 50. ^chlsolosua. 



b.h. Sori dorsal or terminal, solitary on the veins or vein- 

 lets, sometimes confluent in pairs. 

 c. Sori dorsal, or terminal on very short, rather 

 inconspicuous lateral veinlets. 



X. Indusium attached at the base, often cucul- 

 late, at length reflexed. 



No. 27. Cystoplerls. 

 x.x. Indusium attached at the base and sides, 

 half-cupshaped, never reflexed. 



(No. 55. Aspleniwvn, § Loxoscaphe) 



c.c Sori always terminal on the veins or rather 

 long veinlets. 



d. Sori placed in conspicuously cuculiate mar- 

 ginal outgrowths, which are closed by the 

 + flattened, transversally oblong indusia. 

 No. 31a. SaecolOBBltl {sorbi folium). 



d,d. Sori not as in d. 



e. Rhizome erect. Stipes tufted. 



-f. Indusium cuneale. open at the outer 

 edge. (moluccanum). 



No. 31a. SaccoloiBia 

 -(-, + . Indusium roundish, attached by a 

 broad base, otherwise free. 



No. 53. Acrojuliopws. 

 e.e. Rhizome creeping. Stipes remote or ap- 

 proximate. 



f. Segments rhombuidal or linear-tri- 

 angular, unequal-sided at the base. 

 Receptacle distinct. 



No. 35. liierolepia. 



