There are a good many kinds of Aesculus, or Horse Chestnut, natives of America and Asia; the leaves palmately compound, with toothed leaflets; the flowers of two sorts, the fertile ones few in number, near the top of the cluster, with long, thick styles, and the sterile flowers with short styles.
[Sidenote: =California Buckeye= _Aésculus Califórnica_ =White Spring, summer California=]
One of our handsomest western shrubs, usually from ten to fifteen feet tall, with gray bark, and dark bluish-green foliage, the leaflets from five to seven in number, glossy on the upper side, pale and dull on the under, and firm in texture. The flowers have a rather heavy scent and are about an inch across, with four or five, slightly irregular, white petals, which become pink in fading, a pinkish ovary and long stamens with curling, white filaments, unequal in length, with buff anthers. They are crowded in a magnificent, pyramidal cluster, about a foot long, which has a pinkish-red, downy stem, and the buds are also downy and pinkish, so that the color effect is warm-pink above, merging into cream-white below, the whole made feathery by the long stamens. The shrub has a rounded top of rich green foliage, symmetrically ornamented with spires of bloom, standing up quite stiffly all over it. The large, leathery pod contains a big, golden-brown nut, supposed to be poisonous to cattle. The leaves fall off very early in the season, leaving the pods hanging on the bare branches. This is at its best in the mountain valleys of middle California, sometimes becoming a good-sized tree.
[Illustration: California Buckeye--Aesculus Californica.]
A large family; shrubs, or small trees, of temperate and warm regions, some with bitter, astringent properties, often thorny; leaves mostly alternate; stipules minute; flowers often in showy clusters, small, regular; calyx-lobes and stamens four or five; petals usually four or five, sometimes lacking, with claws. The short calyx-tube is lined with a fleshy disk and on this are borne the petals and the stamens, alternate with the sepals and opposite the petals, with swinging anthers. In some cases, some of the flowers have only pistils or only stamens. The ovary superior or partly inferior; the fruit a berry or capsule.