AN ENUMERATION OF CULTIVATED IJIBNS. 



131 



with hyaline squamaa. Fronds simple, linear, smooth, rigid or 

 flaccid and pendulous, from a few inches to 2-3 feet in length. 

 Veins simple, forming an acute angle with the midrib, their 



Genus 56. — Outline portion of frond, natu-al size ; ditto enlarged. ' No. i . 



apices prolonged into a transverse marginal vein, which becomes 

 the receptacle. Sporangia seated in an extrorse Blit of the 

 margin. Sori marginal, linear, continuous. 



1. V. zoster sefolia, Bory; Fee, Mem. Fil. t. 2,/. 2; Lotos's 

 Ferns, 2, t. 65 B. — Mauritius. 



57. HAPLOPTEBIS, Prcsl. 

 Venation uniserial, contiguous; sarmentum short, becoming 



oeu*.i VJ — Portion of irond, snghtly enlarged. No. 



k2 



