AN ENUMEKATION OP CULTIVATED FEKNS. 195 



Fronds simple, cordate-hastate, palmate or bipinnate, smooth, 

 opaque. Veins internal, reticulated. Receptacles transverse, 

 marginal, continuous, in the axis of a linear, continuous 

 indusium. 



1. D. sagittifolia, /. 8m. ; Lowe's Ferns, 3, t. 36. Pteris 



sagittifolia, Eadd. Fil. Bras. t. 63, /. 1; Hook. Fil. 

 Exot. t. 39. Litobrochia sagittifolia, var. alcyonis, 

 Gard. Ghron. 1863. Brazil. 



2. D. pedata, J. 8m. Pteris pedata, Linn. ; (Plum. Fil. 1. 152) ; 



Lang, et Fisch. Ic. Fil. t. 20 ; SchJc. Fil. 1. 100; Eadd. 

 Fil Bras. t. 65, /. 3 et t. 66 B. ; Hook. Bot. Mag. 

 t. 3247 ; Hook. Fil. Exot. t. 34. Brazil. 



3. D. palmata, /. 8m. Gen. Fil. (1841). Pteris palmata, 



Willd., var. lata, Hook. Gard. Ferns, t. 22. Tropical 

 America. 



4. D. collina, /. Sm. ; Lowe's Ferns, 3, t. 38. Pteris collina, 



Badd. Fil. Bras. t. 65, var. nobilis, Moore. Tropical 

 America. 



99. LONCHITIS, Lwm. 



Vernation fasciculate, erect, subarboreous. Fronds bi-tripin- 

 nate, villose, 2-6 feet long, the ultimate pinnae sinuose-pinna- 



Genus 99.- Portion of barren and fertUe fronds, natural size. No, 1. 



o2 



