THE CARBONIFEROUS PERIOD. 



167 



modern Club-mosses {Lycopodiacece). They are amongst the 

 commonest and most characteristic of the Carboniferous 



Fig. Tio. — Lepidodendron Sternbergn, Carboniferous, Europe. The central figure 

 represents a portion oi the trunk with its branches, much reduced in size. The right- 

 hand figure is a portion of a branch with the leaves partially attached to it ; and the left- 

 hand figure represents the end of a branch bearing a cone of fructification. 



plants; and the majority of the "spore-cases" so commonly 

 found in the coal appear to have been derived from the cones 

 of Lepidodendroids. 



