WINTER KEY TO THE SPECIES OF PYRUS 
aa. 
. Bundle-scars 3 or in 3 compound, but distinct groups; buds 
Y%-l4 inch long; branches contorted, bearing many short, 
spur-like branchlets; fruit a pome an inch or more in 
diameter, light green.................. P. coronaria, p. 145. 
Bundle-scars 4-many in a single U-shaped line, not forming 
3 distinct groups; buds about % inch long; branches not 
contorted, not bearing many short, spur-like branchlets; fruit 
berry-like, % inch in diameter, bright red................. 
ne CE Ce eae re eee P. americana, p. 147. 
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