10 COMPENDIUM. 



FAMILY VI. POLYPODIACEAE. 

 Tribe I. Woodsieae. 



GENUS '12. DIACALPE. Sori sessile; indusium 

 globose, bursting down irregularly. Veins free. 



GENUS 12a. PERANEMA. Like genus 12, but 

 the sori (incl. the indusium) stalked; indusium 

 bursting down into 2 more or less regular halfs. 

 Tribe III. Davallleae. 



GENUS 27. CYSTOPTERIS. Sori globose or nearly 

 so, dorsal or terminal on the veins; indusium 

 broad, cucullate, fastened under the sorus, 

 attached with a broad base to 3 sides of the 

 receptacle. 



GENUS 27a. STENOLEPIA. Like genus 27, but 

 the indusium narrow, not cucullate, attached 

 with a narrow base to 1 side of the receptacle. 



GENUS 30a. PROTOLINDSAYA. Sori obconical, 

 intramarginal. Fronds pinnate or 2-pinnatiM ; 

 leaflets not dimidiate. 



GENUS 316. LEPTOLEPIA. Sori roundish, sub- 

 marginal, or on marginal, recurved, lobe-like 

 outgrowths; indusium roundish or transversely 

 oblong, -fixed by a single point to the apex of 

 the vein only, for the rest free, the outer edge 

 lacerate-lobate. Fronds divided, not articulated 

 to the rhizome. 



Genus 33. Acrophorus. Omit this, it being referred 

 to genus 27. 



GENUS 34. DAVALLIA. Sori roundish or longit- 

 udinally elongated, submarginal; indusium at- 

 tached by the base and sides to the vein and 

 parenchyma, the apex free. Fronds divided, 

 naked or somewhat scaly, articulated to the 

 rhizome. 



GENUS 34a. DAVALLODES. Sori roundish or 

 oblong, at or near the base of the ultimate 

 lobes or teeth; indusium partly as in genus 

 31b, but entire, partly as in genus 32 or 34. 



