AN ENUMEEATION OF CULTIVATED FERNS. 



283 



axis of the leaves at their base, globose, 1 -celled, traversed by 

 thread-like receptacles of two kinds : — 1. {Antheridangia), 

 containing numerous small spores ; 2. {Oophoridangia), con- 

 atining large 4-sided spores. 



Qenns 163,— Flaut, uataral size, No, 1. 



1 . 1. laetistris, Lirni. ; WilU. Sp. PI. 5, p. 534 ; Bolt. Fil. 

 <.41 ; Schk. Crypt. 1. 173 j Eng. Bot. 1084.— Europe, 

 Britain. 



