522 FAGACEAE. 
18. Quercus Michadxii Nutt. Cow Oak. 
Basket Oak. (Fig. 1245.) 
Quercus Michauxti Nutt. Gen. 2: 215. 1818. 
A large tree, with gray flaky bark; maximum 
height about 100° and trunk diameter 7°. Leaves 
obovate or broadly oblong, apex acute or acuminate, 
base narrowed, rounded or subcordate, when mature 
bright green, shining above, pale and gray tomentu- 
lose beneath, sharply toothed, 4’-7’ long, 244/-44’ 
wide, the teeth acute or mucronulate; petioles slen- 
der, %4/-134’ long; fruit maturing the first season, 
short-peduncled or sessile; styles very short; cup 
depressed-hemispheric, 1/-1'4’ broad, its bracts 
thick, ovate or lanceolate, appressed; acorns ovoid, 
1/-1 34’ high, about 3 times as high as the cup. , 
In moist soil, Delaware to Indiana, Arkansas, Flor- 
ida and Texas. Wood hard, strong, tough, dense, dura- 
ble; color light brown; weight 50 lbs. per cubic foot. 
April-May. Acorns ripe Sept.—Oct, sweet and edible. 
1g. Quercus Prinus I. Rock Chestnut Oak. (Fig. 1246.) 
Quercus Prinus I,. Sp. Pl. 996. 1753. 
A large forest tree; maximum height about 100°, i 
and trunk diameter 5°; lower branches spreading; 
bark brown, ridged, slightly flaky. Leaves 
coarsely crenate, oblong, oblong-lanceolate or ob- 
ovate, when mature dark green, glabrous and 
feebly shining above, finely gray-tomentulose be- 
neath, 5’-S’ long, 114’-4’ wide; petioles slender, 
4/-14’ long; fruit maturing the first season; 
peduncles equalling or shorter than the petioles; 
styles very short; cup hemispheric, 14/—114’ broad, 
its bracts tomentose, triangular-ovate, acute or 
cuspidate, appressed; acorn ovoid, 1/-114/ high, 
2-3 times as high as the cup; seed edible, but not 
very sweet. 
In dry soil, Maine to southern Ontario, Alabama and 
Tennessee. Wood hard, strong, close-grained, dura- 
ble; color dark brown; weight per cubic foot 47 lbs. 
May-June. Acorns ripe Oct.—Noy. 
y 20. Quercus acuminata (Michx.) Sarg. 
{4// Chestnut or Yellow Oak. (Fig. 1247.) 
Quercus Prinus acuminata Michx. Hist. Chenes Am. 
~ 
/ 
Yh 
no. 5. pl. 8. 1801. 
Quercus Muhlenbergit Engelm. Trans. St. Louis 
| Quercus acuminata Sarg. Gard. & For. 8:93. 1895. 
% A tree with gray flaky bark, much resembling 
f the chestnut; maximum height about 160°, and 
AL / ue trunk diameter 315°. Leaves oblong, lanceolate 
\) y or sometimes obovate, apex acuminate or acute, 
la SS Lf mature dark green and shining above, pale, gray- 
tomentulose and prominently veined beneath, : 
all broad, its bracts floccose, ovate, thick, acute or 
2 cuspidate, appressed; acorn ovoid, 6’’-10’’ high, 
In dry soil, preferring limestone ridges, Vermont and Ontario to Minnesota, south to Alabama 
and Texas. Wood hard, strong, dense, close-grained, durable, dark brown; weight per cubic foot 
Acad. 3: 391. 1877. 
base narrowed or rounded; coarsely toothed, when 
\l\ / Ye. 4/-6’ long, 1/-214/ wide; petioles slender, 1%4/—1’ 
: 0 Life long; fruit sessile or very short-peduncled, matur- 
\ VPs ing the first season; cup hemispheric, 5//—-8/’ 
> LEA, 
about twice as high as the cup. 
54 lbs. May-June. Acorns ripe Oct.—-Nov., edible. 
