VI. E»OL.YJPODIA.CE3A.E. 



Keys to the tribes and genera. 

 (Additions and modifications). 



1. WOQOSIEAE. 



±. Indusium globose or sausage-shaped, bursting down irregularly. 

 S. Indusium globose; veins free. 



3. Sori (incl. the indusium) sessile. No. 12. Diacalpe. 



3.3. Sori (incl. the indusium) stalked. No. 12a. Peraueuia. 

 S.S. Indusium sausage-shaped, or the veins anastomosing. 



No. 13. Diplaziopsi!i. 

 l.±. Indusium cup-shaped, open at the top. 



* Caudes arborescent. (No. ia. Balantium). 



»• Rhizome mostly creeping, not arborescent. 



No. 14. UennstaeclUa. 



3. OAVALLIEAE. 



1. Sori round, solitary on the veins, dorsal or terminal; indusium 

 fastened U7ider the sorus, the point of insertion covered by the 

 sporangia. 



• Indusium broad, hood-shaped when young, attached by a broad 

 base to 3 sides (the inner and lateral sides) of the receptacle. 



No. 27. Cystopteris. 

 •• Indusium narrow, not hood-shaped, attached by a narrowed base 

 to 1 side (the inner side) of the receptacle. 



No. 27a. S<enolepia. 



t.l. Sori round, oblong or linear, solitary on the veins, or uniting the 



apices of 2 or more veins or veinlets; indusium fastened at the 



