Fig. 5: 1, Lycopodium carolinianum: 1, plant, x %, with enlarged peduncle leaf 

 and sporophyll. 2, Lycopodium alopecuroides: 2, plant, x %, with enlarged peduncle 

 leaf and sporophyll. 3, Lycopodium adpressum: 3, plant, x %, and enlarged sporangium. 



4, Isoetcs lithopliylla: 4, plant, x 1, and enlarged sporangium. 5, Isoetes melanopoda: 



5, plant, X 1, and enlarged sporangium. (From Correll in Lundell's Flora of Texas, 

 Vol. 1, PI. 3.) 



