A Bud and Twig Key 



CoTalpo spectoso 



Acer neejundo Ater saccharum 



b2. 





niy 



Fraunus quadtvnqulata 



Gornus florida 



L Leaf -scar magnified. 

 C Cross-section of bud. 

 CC Cross-section of twig. 



Twigs armed with simple or branched thorns above the 

 buds, several buds superposed, the lower ones hidden 

 beneath the V-shaped leaf-scar, see Plate II. Bundle- 

 scars three prominent, no stipule-scars, no terminal bud, 

 tip-scar distinct, twig light yellowish brown glabrous. 

 Plate II. Gleditsia tria cant has Linn. 



