STORKS AGRICULTURAL EXPERIMENT STATION. 339 



121. Bark of trunk flaky 122 



121. Bark of trunk not flaky 124 



122. Lateral buds generally appressed, buds downy; older twigs often 

 with corky ridges Bur Oak (W) (Quercus macrocatpa)v-4SG 



122. Lateral buds divergent, buds smooth; twigs without corky ridges 

 123 



123. Buds narrow conical, pointed 



Chinquapin Oak (W) (Quercus Muhlenbergii)v.440 



123. Buds shorter, blunt White Oak (W) (Quercus alba)p.432 



124. Surface of buds pale-woolly 125 



124. Surface of buds not woolly 127 



125. Inner bark of trunk orange-yellow; whole surface of bud woolly; 

 buds large, ovate-conical. Black Oak (B) (Quercus velutina) p.452 



125. Inner bark of trunk not yellow; not more than upper half of bud 

 woolly 126 



126. Buds sharp-pointed; ovate, the widest part about y^-Vs above 



base; slightly or not at all woolly toward apex 



Red Oak (B) (Quercus rubraJv>44Q 



126. Buds blunt-pointed; oval-ovate, the widest part at or slightly 



below middle; distinctly woolly above middle , . . . . 



Scarlet Oak (B) (Quercus coccinea) p.450 



127. Fissures of bark separated by long flat ridges; buds ovate, more 



or less constricted at base; twigs not bitter 



Red Oak (B) (Quercus rubra)v.446 



127. Fissures of bark separated by long rounded ridges; buds narrower, 

 conical, seldom constricted at base; twigs more or less bitter when 

 chewed Chestnut Oak (W) (Quercus Prinus) p.444 



128. Buds narrow, conical 129 



128. Buds short, blunt 132 



129. Bark of trunk flaky 130 



129. Bark of trunk not flaky 131 



130. Buds downy, lateral buds generally appressed; older twigs often 

 with corky ridges Bur Oak (W) (Quercus macrocarpa) p.436 



130. Buds smooth, lateral buds divergent, twigs without corky ridges 

 Chinquapin Oak (W) (Quercus Muhlenbergii) p.440 



131. Twigs of past season dull, finely downy; shrubs 



Bear Oak (B) (Quercus iUcifolia)v.454 



131. Twigs smooth, shining; slender pin-like twigs numerous, arising 



at nearly a right angle with the branchlets; trees 



Pin Oak (B) (Quercus palustris) p.448 



132. Bark on branchlets peeling into long, dark, stiff-papery layers. 

 Swamp White Oak (W) (Quercus bicolor)p.43S 



132. Bark on branchlets not peeling into long, dark, stiff-papery lay- 

 ers 133 



133. Twigs slender, generally not over 2 mm. thick; shrubs 134 



133. Twigs stout, generally over 2 mm. thick; trees 135 



Bark of trunk smooth; young acorns generally found on winter 



twigs; buds more generally conical 



Bear Oak (B) (Quercus ilicifolia)vA54 



Bark of trunk flaky; young acorns never found on winter twigs. 

 Dwarf Chinquapin Oak (W) (Quercus prinoidesjp.442 



Lateral buds generally appressed; buds densely downy; older 



twigs often with corky ridges 



Bur Oak (W) (Quercus macrocarpa ;p.43B 



Lateral buds divergent; buds not densely downy; twigs without 

 corky ridges 136 



Twigs at least in part covered with very fine close orange-brown 

 down; buds generally nearly hemispherical and about as broad as 



long Post Oak ( W) (Quercus stellata) p.434 



Twigs smooth; buds broadly ovate, distinctly longer than broad. 

 White Oak (W) (Quercus aZ&a;p.432 



