178 



becomes the receptacle. Sori situated in a 

 longitudinal slit of the margin. Fronds simple, 

 linear, grass-like. 



Vittaria elongata Sw. 



Rhizome creeping, clothed with scales having 

 black hair-like points. Stipes short. Fronds 

 up to 4 1 feet long, J-inch broad, simple, linear 

 acuminate, (grass-like) pendulous. Surfaces 

 smooth, naked. Texture fleshy to almost 

 leathery. Midrib prominent beneath, veins 

 sunk in the substance of the frond, proceeding 

 at an acute angle from the midrib, almost 

 parallel, their apices connected by a transverse 

 intramarginal vein. Sori linear, continuous, 

 quite sunk in the marginal grove. [Fig. 42.] 



Distribution: Bombay Presidency INbrth 

 Kanara, on trees, Sumkund. 



South India, on the western mountains, 

 2,000-5,000 feet ; Ceylon, Central Provinces ; 

 North India from the plains up to about '4,000 

 feet ; Malay Peninsula ; Burma, etc. Malay 

 Islands ; Queensland ; Polynesia ; Tropical 

 Africa ; Mauritius. 



GENUS XLIII. HEMIONITES L. 

 (Deriv. Hemionos, a mule the mule-fern.) 



