44 



THE OAK 



the fifth internode with a strand coming off from another 

 leaf situated at another of the angles at a different level. 

 The strands which stand next to this median one one 

 on each side (ms) at first also pass vertically down 

 together with it, but at about the second or third inter- 

 node below they break up into smaller strands, which 



FIG. 10. Diagram of the course of the bundles M, s, and s' 

 of fig. 9, as they pass out of the stem into the base of 

 the leaf-stalk, mm is the median bundle, and ms, ms its 

 two companions (M in fig, 9, A) ; 1,1 are the lateral 

 bundles s and s' of fig. 9, A. The small branches fst go 

 into the stipules. (After Frank.) 



again join with strands coming from other leaves situated 

 at other nodes and angles. 



If we again compare the figures it will be seen 

 that the three strands just traced come down in the 

 angle of the stem, only turning aside lower down the 

 median strand mm, indeed, running actually in the 

 angle through five internodes. 



To right and left in fig. 10 are seen two strands, 



