428 FAGACEAE 
23. Q. a L. Tree becoming 30 m. tall, the bark gray or blackish, or 
tinged with red, broken into appressed s cales: leaves deciduous northwar d, 
partly d southward; blades spies late to spatulate or rhombic in 
r ine, ety ui entire and sometimes wiih a dilated te rminal lobe, or 
R AK. 
un DUCK-OAK.  POSSUM-OAK.)— Sandy soil, swamps, <r river- 
wamps, Coastal Plain and rarely adj. provinees, Fla. to Tex., Mo., Ill, and 
. J.—Hybridizes with Q. cinerea=x Q. caduca; with Q. laevis = E Wal- 
teriana. 
24. v laurifolia Michx. Tree agains 30 m. tall, the bark dark-brown 
or nearly black, with flat ridges and deep furrows: leaves Hal a or partly 
deciduous northwa rd; blades flat in bud, elliptic, varying to oval or obovate, 
4—13 em. long, e entire, deep- Ped glabrous: aeorn E d or nearly 
_sessile; cup he emispherie, 10-15 mm. wide; nut ovoid or globose-ovoid, 10—15 
mm. long. [Q. Phellos iE Cha apm.]—(LAUREL-OAK. WATER-OAK. WIL- 
LOW-OAK.  LiVE-OA pes "n. ammocks and river- pw Coastal Plain 
and rarely Piedmon Fir P5 and Va.—Supposed to hybridize with 
laevis x Q. Mellic ndun with * cinerea =x Q. eo laurifolin (? Q. atlantica 
Ashe) 
25. Q. Phellos L. Tree becoming 25 m. tall, the bark brown or reddish- 
brown, ultimately with Lp scaly pistes and shallow fissures: har all 
deciduous, turning yellow in fa ll; blades revolute and E filiform in bud, 
linear or linear r-elliptie A pane or Mas nceola te uo m. long, shining 
and glabrous at maturity, entire: acorn sile eae cup sau 
pee. 10-15 mm. wide; nut subglo es pus ue or pee bier. 
about 1 em. long.— (WIL iow one CAM UA mps, deg -banks, and sandy bot 
toms, Coastal Plain and rarely adj. provinces, Fla. to Tex., Mo., and N. Y.— 
Hybridizes with Q. T x Q. Rudkinii; e Q. velutina = 0. dubia; 
with Q. rubra=x Q. subfalca 
26. Q. obtusa (Willd.) Pursh. Tree becoming 25 m. tall, the bark brown, 
. ultimately shallowly fissured and ridged: leaves somewhat persistent, 
cun 
not wholly evergreen; blades elliptic-cuneate ia eate, or elliptic-obovate, 
6—12 lo E Ru) ee -green: acorn sessile; cup saucer- 
RM very fl wide; BODIE Or itg Los 7-9 mm. 
[Q. hybrite Es Small] Rive banks and bottoms, DA cal- 
ANE Coastal Plain, Fla. to Miss. and Ga. 
27. Q. cinerea Michx. Small tree, the bark gray, dark-brown, or blackish, 
broken into squarish plates: leaves deciduous; blades elliptic, varying to 
lanceolate or s rog 5-19 cm. ong, mainly entire, pale-green, gray- 
tomentose beneath: ae nearly sessile; id saucer-shaped, 10-15 : 
ae nut ellipsoid or E about 15 mm. uu E a t p 
LAND WILLOW-OAK.  BLUE-JACK.  HIGH-GROUND OAK. SAND-JA 
CINNAMON-OAK. )—Sand- pde dry woods, and pinelands, Coastal Plain, Fla. 
to Tex. Okla., and N. C—Hybridizes with Q. vis=xQ. Ashei; with Q. 
lourifolia = x 0. piri (1 Q. atlantica deus ); with Q. di dica 
XQ. carolinensis . nigra -xQ. cu with ? Q. velut x Q. 
a re (Q. eer p with Q. rubra=x Q. M iE: eth Q. 
myrtifolia = x Q. oviedoensi 
28. Q. rbd EAT 'Tree becoming 30 m. tall, the in pond and ofte 
red-tinged, broken into broad sealy ridges: leaves ‘deciduous; blades e elliptie, 
varying to lónceolaté > oblanceolate, 6-20 cm. long, mainly En E softly brown- 
