﻿COMPENDIUM. XXV 



by a roundish indusium fixed by a broad base, 

 or placed in submarginal depressions covered by 

 a cuneate indusium. Indusium w^ith the outer edge 

 + entire. Fronds divided, not articulate to the 

 rhizome. 



GENUS 316. LEPTOLEPIA. Sori roundish, submarginal 

 or on marginal, recurved, lobe-like outgrowths. 

 Indusium roundish or transversally oblong, fixed 

 by the apex of the veinlet only, for the rest free, 

 the outer edge lacerato-lobate. Fronds divided, not 

 articulate to the rhizome. 



GENUS 32. HUMATA. Sori roundish, submarginal, 

 superficial. Indusium fixed by a broad base, the 

 sides and apex free, + entire. Fronds simple or 

 divided, scattered or subapproximate, articulate to 

 the rhizome. 



GENUS 33. ACROPHORUS. Like genus 32, but the 

 fronds copiously divided, tufted, not articulate to 

 the rhizome. 



GENUS 34. DAVALLIA. Sori roundish or longitudi- 

 nally elongated, submarginal. Indusium attached 

 at the base and sides, the apex free. Fronds 

 divided, scattered, articulate to the rhizome. Rhi- 

 zome scaly, the scales not minute, not fibril-like. 



GENUS 35. MICROLEPIA. Sori roundish, submarginal. 

 Indusium as in genus 34. Fronds divided, rather 

 scattered, not articulate to the rhizome. Rhizome 

 hairy or fibrillose. Ultimate segments unequal-sided 

 at the base. Receptacle distinct. 



GENUS 36. TAPEINIDIUM. Like genus 35, but the 

 rhizome fibrillose or minutely scaly and the fronds 

 rather approximate. Ultimate segments rather equal" 

 sided at the base. Receptacle indistinct. 



