102 F I L I C E S. 



impress of character as the present one, with its large supradecoin- 

 pound fronds, and spreading branches, bearing pinnules about an inch 

 long, ovate-lanceolate, acute, and crenate, with an oblique truncate 

 base. Sori laterally oblong, approximate, with a smooth reniform 

 indusium. 



40. D R Y P T E R I S, J. Sm, 



(Pteridis Spec. Linn., Raddi. LitobrochijE Spec. Presl.) 



Under this genus Mr. J. Smith has enumerated eight species, which 

 form a very natural group ; the whole having smooth ebenous stipes, 

 and coriaceous fronds, which are either simple, cordate, digitate- 

 palmate or pinnatifid, and the veins so sunk in the substance of the 

 fronds as to be hardly discernible. The sori and venation are similar 

 to Litobrochia, but the species retained under Litobrocliia by Mr. J. 

 Smith, are of quite a different habit and consistence. 



1. DORYOPTERIS SAGITTIFOLIA, J. Sm. 



Doryopteris sagitti folia, J. Sm. in Hook. Jour. Bot. 4, p. 163. 



Pteris sagittifolia, Raddi, Plant. Brasil. p. 43, t. 63, f. 1; Gaud. Bot. Freyc. Voy. 

 p. 384. 



Hab. Organ Mountains, Brazil. 



Plant 12 to 15 inches high. Stipes and fronds about equal in 

 length; the latter from an inch to li inches broad, with the lower 

 surface of a pale green colour. 



2. Doryopteris varians, J. Sm. 



Doryopteris varians, J. Sm. in Hook. Jour. Bot. 4, p. 163. 

 Pteris varians, Raddi, Plant. Brasil. p. 44, t. 64, f. 1. 



Hab. On the Corcovado, Rio Janeiro, Brazil ; frequent. 



