41 



free below, pinnae pinnatifid down to a narrow- 

 ly winged rachis ; ultimate segments linear. 

 Texture firm, membranaceous. Veins a central 

 costa in each segment, spurious venules none 

 or indistinct. Sori terminal ; indusium tubular, 

 sunk or somewhat protruding ; mouth .very 

 distinctly two-lipped with the lips almost tri- 

 angular. 



Distribution : Western forests of the 

 Bombay Presidency. 



Western forests of the Madras Presidency, up 

 to 8,000 feet ; Ceylon ; Himalayas and Khasya 

 hills up to 6,000 feet. Throughout the tropics 

 of the whole world. 



TRIBE IV. DAVALLIE*: 



Son rounded or oblong, situated at or near 

 the margin ; indusium adherent at the base, 

 open at the apex, i.e. exteriorly, open or free at 

 the sides. 



GENUS VII. LEUCOSTEGIA PRKSL. 



(Deriv. Gr. Leucos, white ; stegos, a cover.) 

 Indusium small, narrow, thin, fixed only 



by its broad base. Rhizome creeping, stipe 



articulated with the rhizome. 



