157 
. Leaves blunt at apex, about 1/2 in. long, with two white lines beneath when 
fres Heml 
Bg a AP CAELUM emlock. (Tsuga canadensis.) 
. Leaves somewhat pointed at apex, 3/4-1 in. long 
w. (Taxus baccata.) 
uropean Ye 
. Leaves pointed at the apex.. Cephalonian Silver Fir. (Abies cephalonica.) 
= Leaves bilant or: notched ot the pez... Bees Ee 3t. 
. Leaves blue-green, usually glaucous on the young shoots, often 4-sided 
Red Fir. (Abies nobilis. ) 
. Leaves dark green and shining above, whitish beneath.............. 33 
. Native tree; leaves about 3/4 in. long; mature cones 2-4 in. long 
m Fir. (Abies balsamea.) 
Balsa 
. Cultivated trees; average leaves usually more than 3/4 in. long; mature 
cones 456 “in, Ioüg.. ooo reuse SOL PIECE Као 33 
. Leaves tapering to the base, somewhat cu 
Nort 
ern ini d (Abies nordmanniana.) 
Silver 
. Leaves not completely àe in асо Aiie ir. ies Picea.) 
. Leaves or leaf ion the pronl oo olores IS ee Stee ЯБ 
Leaves or leaf scars ыны» on the Brame ООСО СУИС 58. 
. Leaves with entire ог wavy m fone du OMA C E AM UNS E es 3T. 
. Léaves with toothed ot lobed иин | 07.1: eS 40. 
. Leaves ovate, 2—5 in. long; бна, tree with bark peeling off in small rec- 
tangular pátebes........ 0... Flowering Dogwood. (Cornus florida.) 
. Leaves broadly ovate; trees with rather smooth or арзы Һа; ои 38. 
. Leaves 2-3 in. long with wavy margins; cultiva 
ve ci ситуа 
ted t 
(Cercidiphyllum — ) 
L 
. Fruit of long ve 8-20 in. long... рое Catalpa. (Catalpa E ) 
. Fruit of short capsules 1-2 in.long...Empress Tree. (Paulownia tomentosa.) 
. Leaves sharply toothed, not lobed, the teeth about 1/4 in. long; cultivated 
reb lloc o UIN IQ E Hornbeam Maple. (Acer carpinifolium.) 
койне nore or fius ТОББ oe ek EE ERAN Cur Ra hee V СЛ, 41. 
. Leaves very deeply 7-11-lobed, the lobes linear to lanceolate, narrow, some- 
M 
times relobed; cultivated tree.....Japanese Maple. (Acer аре 
b. Leaves not completely as in @....;...:.2 eee Aelius 
42 а. Leaves near ans circular in outline, 5-9-lobed, the lobes doubly а. 
cultiva ies тыы ам =з Round-leaved Maple. (Acer circinatum.) 
b. Leaves not spe iq Bid ies a eee ee a 43 
43 a. Leaves 3-lobed only toward the me the margins finely toothed all ar 
smooth, green, striped.. triped Maple. (Acer pennsylvanicum.) 
b. Leaves and bark not inicie a as лиа ое 44. 
b. 
. Leaves with indentations extending more than half way to the petiole, 
whitish 
beneath; bark peeling off in thin flakes; branches often upturned 
Ehe enis. iu A be ei ei oe Se Silver Maple. (Acer saccharinum. " 
Trees not completely as in a...... 
45 а. тя 3-7-lobed, the абаз entire or the middle one sometimes diy 
thed; ret treme S s 
