THE ANGIOSPERMAi: : LEAVES 



103 1 



Fig. 102 1. — Auciiba japonica. Transverse section of petiole showing 

 three main vascular bundles. 



Fig. 1022. — Syringa vulgaris. Trans%^erse section of 

 petiole showing a single main vascular bundle in the 

 form of an incurved band. Two subsidiary bundles 

 occur in the upper corners. 



