The Trees of Vermont 23 



gg. Terminal bud absent (occasionally present in Cas- 

 tanca). 

 h. Bud at end of twig very obliquely unsymmetrical, 



mucilaginous when chewed Tilia, p. 181. 



Jih. Bud at end of twig symmetrical, not mucilaginous 

 when chewed. 



i. Bud-scales 2-3 visible ; pith star-shaped in cross- 

 section ; sap not milky; fruit a prickly bur, 



present ; large tree Castanea, p. 108. 



a. Bud-scales 4-8 visible; pith not star-shaped in 

 cross-section; sap milky; fruit berry-Hke, not 

 present ; small tree Morus, p. 137. 



