ARTIFICIAL KF.Y. 13 



6. Pinnae not articulate to 

 rachis. 

 7. indusium attach-! ,ji,,,j,pia, 



ed by base and 5j g^^^^j^^^^ 



sides ) 



7. Indusium fixed 

 by base only, 



or wanting Aspidie.s; 



5. Veins free, sori subtermlnal 

 or dorsal. 

 6. Frond quadripinnate, 



sorus naked (20) Monachosorum 



6. Less compound, or 



with indusium Aspidie^ 



5. Veins anastomosing AsPiDiEiE 



