116 JOURNAL OF THE ARNOLD ARBORETUM (vol. iv 



between A. campestre and A. Lobelii. The form elongatum differs from 

 the type chiefly in its deeply 3-lobed leaves with elongated lobes undulate 

 at the margin and often lobulate, the middle lobe ovate to ovate-oblong 

 usually narrowed at the base and the lateral lobes often with a larger 

 lobe on their lower side, and in the red color of their veins beneath and 

 the petiole. 



( To be continued) 



