132 



FEENS : BRITISH ANt) tfOKElGtf. 



. carapitose. Fronds simple, narrow, linear or lanceolate, 1-2 feet 

 long, smooth. Veins simple, parallel, their apices combined by 

 a transverse intra-marginal vein, which, is immersed in a groove, 

 and becomes the receptacle, forming a linear, continuous, inter- 

 marginal, naked sorus. 



1. H. scolopendrina, Presl, Tent. Pterid. t. 8, /. 21. Pteris 



scolopendrina, Bory ; Sw. Tseniopsis scolopendrina, 

 J. Sm. Gen. Fil. 1841. Taaniopteris Forbesii, Ilooh. et 

 Bauer. Gen. Fil. t. 76 B. Vittaria Zeylanica, Fee, 

 Vittar. 1. 1,/. 3. — Ceylon and Mauritius. 



2. H. lineata, /. Sm. Vittaria lineata, Sw. ; Schlc. t. 101 B ; 



J. Sm. Gat. 1857 ; Lowe's Ferns, 2, t. 65 A. Tseniopsis 

 lineata, /. Sm. Gen. Fil. 1841. — Tropical America. 



58. PTEROPSIS, Desv. 



Vernation uniserial, contiguous ; sarmentum short, caespi'.ose. 

 Fronds simple, linear, acuminate, 6-18 inches long, rigid, smooth. 

 Veins uniform, reticulated, forming transverse elongated, hexa- 

 gonoid areoles. Receptacles compital, elongated on the exterior, 

 transverse anastomose, forming a linear, continuous, marginal 

 sorus. 



Genus 68.— Portion of frond, slightly enlarged. No. ■• 



