1, 2 Platanus occidentalis L. Leaves from adventitive twigs from old stumps. 

 3, Platanus occidentalis L. Leaf from seedling. 4, Platanus shirleyensis Berrjs 

 from the Tuscaloosa formation in Alabama. 5, Platanus kummelii Berry, non- 

 lobate form from the Cliffwood clays of New Jersey. All figures natural size. 



5 



