DICOTYLEDONOUS PLANTS 105 
of the yellow calyx much longer than its limb. Flowers very 
fragrant. Fruit brownish-black, barely eatable. 
44. PLATANACEZ. Sycamore FamiIty. 
Trees ; with simple, alternate, petioled leaves with stipules, 
the bases of the petioles covering the buds. Flowers mone- 
cious, in axillary, long-peduncled, globose heads. Calyx and 
corolla very inconspicuous, each consisting of 3-8 minute 
scales, or wanting. Stamens as many as the sepals and 
opposite them. Pistils several, inversely conical, hairy at 
the base, styles long. Capsules 1-seeded.* 
PLATANUS, L. 
Characters of the family. 
1. P. occidentalis, L. Sycamore, Buttonwoop. A large tree, 
bark light-colored, smooth, peeling off in large, thin plates. Leaves 
large, round heart-shaped, angularly lobed and toothed, densely 
white-woolly when young, becoming smooth with age; stipules 
large, toothed. Fruit in a globular, drooping head, which remains 
on the tree through the winter, dropping the seeds very slowly. 
Common on river banks and in swampy woods.* 
45. ROSACEZ. Rose FamI ty. 
Herbs, shrubs, or trees. Leaves alternate or rarely oppo- 
site, simple or compound, with stipules. Calyx 5-lobed. 
Petals 5, rarely wanting, inserted with the stamens on the 
edge of a disk that lines the calyx-tube. Stamens many, 
rarely 1 or few. Carpels 1 or more, distinct or coherent, free 
or adnate to the calyx-tube. Fruit a pome, a stone-fruit or 
group of stone-fruits, or 1-several akenes or follicles, rarely 
a berry or capsule. The relation of the parts of the flower 
to each other and to the receptacle is shown in Fig. 13. 
