. The American entomologist and botanist. ng spar-ingly into some of the Eastern States. It is alarge tree, of irregular shape, with long angularlimbs, and bark rather rougher and darker thanthe White Oak. It is the principal tree of theoak openings of the Western States, in whichsituations the wood is coarse grained and brittle;but when growing in a dense forest the tree ismore regular in shape, and the timber of a bet-ter quality. The leaves are obovate in outline,broad at the top, and narrow at the base, withthree to five lobes on each side, the lower onessmall, and the divisions reaching n
. The American entomologist and botanist. ng spar-ingly into some of the Eastern States. It is alarge tree, of irregular shape, with long angularlimbs, and bark rather rougher and darker thanthe White Oak. It is the principal tree of theoak openings of the Western States, in whichsituations the wood is coarse grained and brittle;but when growing in a dense forest the tree ismore regular in shape, and the timber of a bet-ter quality. The leaves are obovate in outline,broad at the top, and narrow at the base, withthree to five lobes on each side, the lower onessmall, and the divisions reaching nearly to themidrib, the upper ones longer and under surface is white with a fine down,the upper surface glossy green. They are nar-row, wedge-shaped at the base, and with stalksan inch or more in length. The acorn is round- ish, about an inch long, and usually nearlyenclosed by the cup, which is deep, and exter-nally rough, wilh pointed scales, at the edgebecoming long and loose to form a mossy fringe to the border. is: i-s 1. Post Oak—(Quercus obtusiloba, Miclix,) The Post Oak is usually a much smaller treethan either of the preceding. It is not verycommon in the Northern States, but becomesabundant at the South. In Southern Illinoisare large tracts of low, flat land, principallycovered mth this species, and hence called postoak flats. Its wood is very compact and dur-able, and is highly valued for making fenceposts. The leaves present considerable varia-tion, being generally obovate in outline withfewer and larger lobes than in either of thepreceding species. The upper part of the leafusually presents three large rounded lobes, be-low is a triangular portion running to a pointat the ])ase. They are thick and leathery whenmature, and of a yellowish-gray color on theunder side. The acorns are smaller than thoseof the White Oak, one-half to two-thirds of aninch long, and about half covered by the saucer-shaped smooth cup. « « » As THE influence of flowers is alw
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