WINTER KEY TO THE SPECIES OF AESCULUS 
a. Terminal bud about 74 inch long; bud-scales covered with 
a glaucous bloom, not conspicuously resinous; bark broken 
into thick plates; prickly bur about 1 inch in diameter...... 
Sshyiita bhbhartiasiindie Demian a gears ee ete ew tena ene A. glabra, p. 199. 
aa. Terminal bud 1-1%4 inches long; bud-scales conspicuously 
sticky-resinous, glistening; bark broken into thin plates; 
prickly bur about 2 inches in diameter..................0.. 
Pe ee ee eee es A. hippocastanum, p. 197. 
—195 — 
