hh. Twigs brownish, not spicy-aromatic; bundle- 
scar appearing as a large dot; terminal bud 
absent; pith chambered..... CELTIS, p. 131. 
gg. Bundle-scars 3 or in 3 compound, but distinct 
groups. 
h. Terminal bud present. 
i. Stipule-scars present. 
j. First scale of lateral bud directly in front, 
i. e., exactly above the center of the leaf- 
scar; twigs brittle; pith somewhat star- 
shaped in cross-section. POPULUS, p. 45. 
jj. First scale of lateral bud not directly in 
front, i. e., to one side of the center of the 
leaf-scar; twigs not brittle; pith circular 
in cross-section........ PRUNUS, p. 153. 
ii. Stipule-scars absent. 
j. Buds bright to dark red, the terminal 
Y%-¥4 inch long. 
k. Branches contorted, bearing many 
short, spur-like branchlets; fruit an 
apple an inch or more in diameter, light 
STEEN wanes vevesee eases PYRUS, .p. 143. 
kk. Branches not contorted, not bearing 
short, spur-like branchlets; fruit berry- 
like, 14 inch long, blue-black.......... 
jj. Buds brownish to gray, the terminal ex- 
ceeding 4 inch in length. 
k. Buds narrow-conical, sharp-pointed ; 
leaf-scars small, narrowly crescent- 
shaped; twigs about 4g inch thick; 
pith homogeneous; fruit berry-like, not 
present..... AMELANCHIER, p. 149. 
kk. Buds broadly conical to ovoid, blunt- 
pointed; leaf-scars conspicuous, broad- 
ly heart-shaped; twigs about %4 inch 
thick; pith chambered; fruit a nut, 
often present........ JUGLANS, p. 61. 
hh. Terminal bud absent (sometimes present on 
short shoots of Betula). 
— XxIxX — 
