Trees; a handbook of forest-botany for the woodlands and the laboratory . 62 and63). Medium-sized tree. Leaf broadly ovate-deltoid,ovate-rhomboid, or pentagonal oblong-ovate or cordate ingeneral contour, large, 6—12 (8—10 x 4—8) cm., and cut inpinnate fashion into 5—7 or more large triangular teeth orlobes, the lower of which diverge, giving the leaf a pseudo-palmatifid appearance, an effect enhanced by the longlower secondary ribs, which come off from the base withthe petiole. Lobes triangular acute or acuminate, sharplyserrate or bi-serrate, unequal, the lower larger and theuppermost smaller
Trees; a handbook of forest-botany for the woodlands and the laboratory . 62 and63). Medium-sized tree. Leaf broadly ovate-deltoid,ovate-rhomboid, or pentagonal oblong-ovate or cordate ingeneral contour, large, 6—12 (8—10 x 4—8) cm., and cut inpinnate fashion into 5—7 or more large triangular teeth orlobes, the lower of which diverge, giving the leaf a pseudo-palmatifid appearance, an effect enhanced by the longlower secondary ribs, which come off from the base withthe petiole. Lobes triangular acute or acuminate, sharplyserrate or bi-serrate, unequal, the lower larger and theuppermost smaller and passing into teeth; separated byacute sinuses, the lower extending to near the plane or slightly cordate. Lamina firm, green, shiningand glabrescent or pubescent above, paler beneath andpubescent, bluish, or greyish and white-tomentose; especi- 206 SERVICE TREE ally so when young or on suckers. Petiole slender, 2—5cm., or about half as long as the lamina. The loose downytomentum is apt to disappear on old leaves. Autumnleaves yellowish Fig. 62. Service Tree, Pyrus torminalis, p. 205 (Sc). SERVICE TREE 207 Venation pinnate, pseudo-palmate at the base, withabout 6 (5—8) pairs of prominent and distant secondaries,of which the lower curve out; all ending in the pointedapex of the lobes, or the upper in teeth, without forking.
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