e. Lateral buds widely divergent; bud-scales scarious 
on the margins; lowermost branches of trees grow- 
ing in the open not drooping nearly to the ground 
Peet Tee eee [2] Q. imbricaria, p. 121. 
ee. Lateral buds more or less appressed; bud-scales not 
scarious on the margins; lowermost branches of 
trees growing in the open drooping nearly to the 
SHOU. sce soho nem dehavesiare [2] Q. palustris, p. 111. 
aa. Terminal buds usually about 14 inch long (slightly smaller 
in Q. ellipsoidalis). 
b. Buds conspicuously hairy or tomentose. 
c. Buds rusty-hairy, acute at the apex; cup-scales of acorn 
rusty-tomentose; inner bark of trunk not yellow; shrub- 
by tree, rare in Michigan....[2] Q. marilandica, p. 119. 
cc. Buds hoary-tomentose, obtuse at the apex; cup-scales of 
acorn ‘hoary-pubescent; inner bark of trunk yellow; 
large tree, common in Michigan..[2] Q. velutina, p. 117. 
bb. Buds glabrous, or pubescent only above the middle. 
c. Buds strictly glabrous throughout, lustrous; inner bark 
of trunk yellow or whitish. 
d. Buds obtuse at the apex; trunk provided with pins or 
stubs of dead branches near the ground; inner bark 
of trunk yellow; nut %-34 inch long, inclosed for 
one-third to one-half of its length in a top-shaped 
cup; kernel of nut yellow..[2] Q. ellipsoidalis, p. 115. 
dd. Buds acute at the apex; trunk not provided with pins 
or stubs of branches near the ground; inner bark of 
trunk whitish; nut about 1 inch long, inclosed only 
at the base by a shallow, saucer-shaped cup; kernel 
of nut white................-00. [2] Q. rubra, p. t09. 
cc. Buds pale-pubescent above the middle, but usually glab- 
rous below, not lustrous; inner bark of trunk red...... 
adeiasihe tautaba icra tata sitet ace RiednseRus menue [2] Q. coccinea, p. 113. 
