VIII. A Key to the Chautauqua Trees 



Modified and enlarged from the key of Dr. Schmucker. 



I. Cone-bearing trees (mostly evergreen, with needle-like leaves). 



A. Green only in summer (Tamarack) . .Larch 



B. Evergreen. 



1. Leaves springing singly from the 



stem. 

 D. Leaves short, blunt, pressed to 



the stem Arbor Vitae 



D'. Leaves long for their width. 



E. Leaves without leafstalk Balsam Fir 



E'. Leaves with small leafstalk. 

 F. Leaves extending from stem in 



all directions Norway Spruce 



F'. Leaves extending from the 



stem in two directions Hemlock 



2. Leaves springing from the stem in 



clusters. 



D. Five leaves to the cluster White Pine 



D'. Three leaves to the cluster Pitch Pine 



D". Two leaves to the cluster Scrub Pine 



II. Not cone bearing, leaves not needle-like, summer green. 



A. Leaves in circles of three about 



the stem, heart-shaped Catalpa 



B. Leaves springing from directly 



opposite sides of the stem. 

 I. Entire leaf in one piece (simple). 

 D. Leaves distinctly three lobed, with 



slight, if any, sign of 5 Red Maple 



D'. Leaves with 3 large and 2 small 



but plain lobes, tips stretched .... Sugar Maple 

 D'. Leaves plainly 5 lobes, but 2 some- 

 what smaller than other 3. 

 E. Indentations less than half way 



to midrib Norway Maple 



E'. Indentations more than half way 



to midrib Silver Maple 



