BRAINEA. 



119 



GENUS XIII. 



BRAINEA. J. Smith. 



An interesting new family, represented by a single species, 

 the Brainea insignis, a native of China. 



Fronds pinnate, about two feet in length. Veins flabellately 

 forked; the lower venules anastomosing angularly, and forming 

 a costal row of oblique cuneiform areoles. 



Sori broad, continuous, or sub-interrupted, transverse, and 

 naked. 



VOL IV, 



