FOREST TREES. 203 



and remain on the trees until spring. Acorns biennial and 

 quite small. A large tree, North Carolina to Florida. 



Q, lobata, Nee. — Lobed-leaf Oak. — Leaves deciduous, two to 

 foui" inches long, downy beneath, oblong or ovate, deeply-lobed, 

 lobes sometimes toothtd or lobe-dentate. Acorns elongated- 

 conical, one to two and a fourth inches long, usually pointed. 

 Cup deeply hemispherical, almost always strongly tubercula- 

 ted. A large tree, with smooth, slender, and often pendant 

 branches. Common thi-oughout the State of California. Wood 

 said to be brittle, and bark on old trees four or five inches thick. 



Q. lyrata, Walt. — Over-cup Oak, Post Oak. — Leaves five to 

 eight inches long, crowded at the ends of the branches, downy 

 or pale beneath, naiTowed at base, obovate-oblong, seven to 

 nine lobes, the lobes triangidar, acute and entire. Acorn round- 

 ish, and nearly enclosed in the round-ovate cup with rugged 

 scales. Acoms ripen the first season. A large tree in the 

 swamps of North Carolina to Florida, and sparingly in Arkan- 

 sas. Not very abundant. Wood said to be excellent, resemb- 

 ling that of the WTiite Oak. 



Q. niacrocarpa, Michx. — Burr Oak, Mossy-cup Oak. — Leaves 

 large, eight to fifteen inches long, thin, obovate-oblong, slightly 

 downy beneath, narrowed at the base, stalk short, slightly or 

 strongly, and many-lobed, the lobes rounded and mostly entire. 

 Fruit large, scales of the cup thick, the upper ones producing 

 long, fringe-like awns. Acorn an inch to an inch and a half 

 long, half enclosed in the cup A large tree, sixty to eighty 

 feet high, with stem four feet or over in diameter. One is 

 mentioned in Vol. I, North American Sylva, as growing in Ohio, 

 with a stem seventeen feet in diameter, at six feet above the 

 ground, and the tree one hundred feet high. The young twigs 

 and branches are somewhat corky. Wood coarse-grained, of 

 little value, except for fuel. A widely distributed tree in our 

 Northern States, but not very abundant, except in the Western 

 or from Ohio south and west. 



Q. Mahlenbergii, Engelm. — Yellow Chestnut Oak. — Leaves thin, 

 five to six inches long, one and a half to two broad, pale be- 

 neath, sharply serrate, with incurved teeth, and either lanceo- 

 late, with a long point, or broadly ovate or obovate, sometimes 

 seven inches long and five wide. A small or medium-sized tree, 

 with flaky, pale ash-colored thin bark, and very tough wood ; 

 light yellowish or brown when mature, whence probably the 

 popular name of yellow oak. Occurs scatteringly throughout 



