AN ENUMERATION OF CULTIVATED FEENS. 229 



1. C. oflS-Cmarum, Willd.; Hooh. Gen.Fil. 1. 118 ; LimM. mid 

 Moore's Brit. Ferns, t. 43 A ; Lowe's Ferns, 5, t. 54. 

 Asplenium Oeterach, lAwn. ; Hooh. Brit. Ferns, t. 36. 



Genus 117>— Frond natural sizeiOnd portion enlarged. No. 1. 



Grammitis Oeterach, 8w. ; Schh. Fil. t. 7 B ; Lodd. 

 Bot. Gab. t. 15. Scolopendrium Oeterach, Fng. Bot. 

 1244. — Europe, North India. 



TuiBE X.— DICKSONIS^. 



Sori marginal, round, or linear and transverse. Indusvwm 

 lateral, interiorly attached, its extrorse margin free and con- 

 niving more or less with the changed margin of the frond, which 

 becomes an accessory indusium, the two forming a cucuUate or 

 bivalved round cyst, or elongated grove, containing the sporangia. 



