The Gleicheniacece and Lindsayca. 143 
Fig. 41. Gleiclicnia pcctinata. 
A. Junction of leaf-trace with stele of rhizome. 
B. T. S., behind node showing connexion of dorsal pocket with 
pith still open. 
C. T. S., further back, showing dorsal pocket, (d.p.) split into 
two and separate from pith. 
l.t. 
Fig. 42. Platyzoma microphylla. Diagram of stele of rhizome showing 
internal endodermis (i.e.,) with pith, but no internal phloem. Only a single 
leaf-trace (/./.,) is shown leaving the xylem. As a matter of fact the leaves 
are polystichous, and in any given section a number of traces would be seen. 
Modified from Boodle. 
