80 



*ERNS : BRITISH AND FOREIGN. 



lower exterior venules free. Receptacles punctiform, terminal 

 on tlie free venules in the costal areoles. Sori round, transverse, 

 uniserial, protruding through the dense scales. 



1. L. incana, /. 8m. Polypodiura incanum, Sw. P. vclatum, 



SchJc. Fil. t. 11 B. — Tropical America and Southern 

 United States. 



2. L. sepulta, /. 8m. Polypodium sepultum, Kaulf. ; Lowe's 



Ferns, 1, t. 34 A. P. rufulum, Presl. P. hirsutissimum, 

 Bad. Fil. Bras. t. 26. Acrostichum lepidopteris, Lang, 

 et Fisch. Ic. Fil. t. 2.- -Tropical America. 



3. L. squamata, J. 8m. Polypodium squamatum, Linn. 



(Plum. Fil. t. 79) ,• Lowe's New Ferns, t. 34. — West 

 Indies. 



4. L. rhagadiolepis, J. 8m. Goniophlebium rhagadiolepis, 



Fee, Mem. Polypod. t. 19,/. 3. Polypodium thysano- 

 lepis, A. Braun. — Tropical America. T. 



7. GONIOPHLEBIUM, Presl; J. 8m. 



SMuome thick and fleshy, or slender and sub-hypogseous. 

 Fronds pinnatifid or pinnate, rarely simple, uniform, 1 — 3 feet 

 high, smooth or slightly pubescent, segments and pinnae adhe- 

 rent with the rachis. Veins once or more times forked, or equally 

 pinnate, the lower anterior venule always free, the rest angu- 

 larly anastomosing, and generally producing an excurrent £-ee 

 veinlet from the junctions. Receptacles punctiform, superficial, 

 terminal on the anterior free venules and also often on the 



Genua 7.— Portion of mature frond. No. 12. 



