AN ENUMEEATION OF CULTI-VATED FEENS. 



97 



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

 linear lanceolate or broad elliptical, rarely pinnatifid, smooth, 

 opaqne, the fertile lai'ger than the sterile, and often snb-con- 

 tracted. Prmim-y veins eostseform, straight; venules com- 

 pound, anastomosing with free veiulets terminating in the 

 areoles. Receptctcles compital, elongated, oblique, forming a 

 continuous or sub-interrupted linear sorus between the primary 

 veins. 



* Fronds simple. 



1. S. eaudiforme, J. 8m. Polypodium caitdiforme, Blume, 



Fil. Jew. t. 54, /. 2. Grammitis (SelHguea) caudi- 

 formis-, Hooh. Bot. Mag. t. 6328. Gymnogramma 

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



** Fronds pinnatifid, 



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



thifoUa, Bon. Grammitis decurrens. Wall. ; Hooh. 

 et Grev. Ic. Fil. t, 6. Gymnogramma (Selliguea) 

 decurrens, Hooh. 8p. Fil. — India, Japan, Philippine 

 and Piji Islands. 



24. COLYSIS, Presl. ; Fee. 

 Rhizome short, sub-hypogeoua. Fronds simjjle lobed or 



Genus 24.— Portion of niBture frond, und r side. No. 1. 

 H 



