AN ENUMERATION OP CULTIVATED FERNS. 



203 



103. BRAINEA, J. 8m. 



(Bowringia, Hook, non Champ.) 



Vernation fasciculate, erect ; caudex arboreous, 2-4 feet high. 

 Fronds pinnate, rarely sub-bipinnate, 1-3^ feet long ; pinnae 

 linear-lanceolate, 4-6 inches long, subsessile, base truncate 



Genus 103. Fertile pinna, 

 underside. No. 1. 



Genus 103. Barren pinna, 

 underside. No. i. 



above, auriculated below, margin crenate-serrulate. Veins 

 flabellately forked, free exteriorly ; the lower venules angularly 

 anastomosing, forming a costal row of oblique, cuneiform 

 areoles. Sporangia produced on the transverse anastomoses 



