AN ENUMEKATION OP CULTIVATED FEUNS. 301 



56. VITTABIA (p. 130). 



2. V. remota, Fee; Hook. Sp. Fil t. p 185. "W. Indies. K 



3. V. stepitata, Kze.; Hook. 8p. Fil. p. 179. Columbia to 



Peru. K. 



a. CTENOPTERIDE2S. 



/. Sm. Hist. Fil. p. 183. 



Fronds linear, repand, sinuose, moniliform or pinnatifid, rarely 

 pinnate, or more compound, from an inch to a foot or more in 

 length. Veins free ; sori punctiform, naked. 



OBS. This tribe embraces about 50 or 60 small, neat-growing 

 ferns, none of which have as yet been introduced except the 

 following. 



60a. CTENOPTERIS, Bl. 

 (Polypodium sp., And. Hook. Sp. Fil.) 



Vernation fasciculate or sarmentose. Fronds linear lanceo- 

 late, sinuose, or more or less deeply pinnatifid or pinnate, rigid, 

 erect: or thin and pendulous ; segments entire, dentate or laci- 

 niated. Veins once forked, rising from the midrib of each 

 segment or lacinas, generally obscure. Sori punctiform, ter- 



