The Gleicheniacece and Lindsayece. 
•39 
by Boodle does the internal endodermis connect with the external. 
It is, on the other hand, always continued down with its enclosed 
Fig. 37. Gleichenia dicarpa. Series of transverse sections through stele 
of node, showing departure of leaf-trace. From Boodle. 
sclerenchyma into the xylem of the stele to form rather a bulky 
pocket which dies out below the node (Fig. 39). Sometimes a 
slight branch is also formed penetrating the xylem in an acroscopic 
direction (Fig. 39 C, D). The internal phloem of the leaf-trace also 
passes down into the pocket, forming a few sieve tubes on the side of 
the internal endodermis nearest the centre of the rhizome axis (Fig. 
39 B, C, D). Occasionally the internal phloem connects with the 
