AN ENUMERATION OP CULTIVATED FEENS. 275 



like. Sporangia subglobose, trilobed, vertically trivalved, 

 solitary in the axis of the bract-like leaves. 



Genas 158. — Portion of fertile frond, natural size; spore-case 

 enlarged. No. i. 



1. P. triquetrum, 8w,. ; Schh. Fil. 1. 165 5 ; Hook. Gen. Fil. 

 t. 87; Lodd. Gab. t. 1916. Lycopodium nudum, 

 Linn. — Tropics and sub-tropical regions of both 

 hemispheres. 



159. LYCOPODIUM, Imm. 



Stems rigid, erect or slender, flagelliform, pendulous or 

 creeping ; leaves acerose, subulate or rusciform, distant or 

 imbricate. Sporangia reniform, vertically bivalved, solitary Id 

 the axis of the leaves, or in terminal, rarely lateral, contracted, 

 ament-like spikes. Spores numerous, small, uniform {Antheri' 

 dangia only ?). 



t2 



