AN ENUMERATION Of CULTIVATED FEENS. 



37 



hypogeous and naked. Fronds stipate, 1-2 feet long, simple, 

 linear lanceolate or broad elliptical, rarely pinnatifid, smooth, 

 opaque, the fertile longer than the sterile, and often sub-con- 

 tracted. Primary veins costaaform, straight ; venules com- 

 pound, anastomosing with free veinlets terminating in the 

 areoles. Receptacles compital, elongated, oblique, forming a 

 continuous or sub-interrupted linear sorus between the primary 

 veins. 



* Fronds simple. 



1. S. caudiforme, J. Sm. Polypodium caudiforme, Blume, 



Fil. Jav. t. 54, /. 2. G-rammitis (Selliguea) caudi- 

 formis, Hook. Bot. Mag. t. 5328. Gymnogramnia 

 (Selliguea) caudiformis, Hook. Sp. Fil. — Java. 



** Fronds pinnatifid. 



2. S. pothifolia, J. 8m. in En. Fil. Phil. Hemionitis po- 



tbifolia, Don. Grammitis decurrens, Wall. ; Hook. 

 ft Grev. Ic. Fil. t. 6. Gymnogramma (Selliguea) 

 decurrens, Hook. Sp. Fil. — India, Japan, Philippine 

 and Fiji Islands. 



24. COLYSIS, Presl. ; Fie. 

 Rhizome short, sub-hypogeous. Fronds simple lobed or 



Genus 24,— Portion of mature frond, under side. H° '., 



