s a little later than the leaves in spring,
in stalked corymbs, less drooping than the Sugar-maple (No. 6). Fruit
with wings diverging in a straight line. A medium-sized, broad, rounded
tree with brown twigs and milky juice, best seen at the bases of the
young leaves. Cultivated throughout.

[Illustration: A. Laetum.]

9. =Acer Laetum.= (COLCHICUM-LEAVED MAPLE.) Leaves 5- to 7-lobed,
scarcely heart-shaped at base, smooth and green on both sides; juice
milky; the lobes usually without any notches or irregularities,
sometimes with about three winding sinuations. Flowers in erect corymbs.
Differs from Acer platanoides in having the lobes of the leaves more
nearly entire, and the fruit much smaller with wings not so broadly
spreading.

[Illustration: A. campestre.]

10. =Acer campestre=, L. (ENGLISH OR CORK-BARK MAPLE.) Leaves cordate,
with usually 5 roundish lobes, sparingly crenate or rather undulated;
juice milky. Racemes of flowers erect, appearing after the leaves in
spring. Wings of the fruit broadly spreading; fruit ripening very late.
A low (15 to 30 ft. high), round-headed tree, with the twigs and smaller
branches covered with corky bark. Occasionally cultivated; from Europe.

Var. _variegatum_ has white blotched leaves.

[Illustration: A. palmatum.]

11. =Acer palmatum=, Thunb. (PALMATE-LEAVED JAPAN MAPLE.) Leaves small,
smooth, palmately parted into 5 to 9 quite regularly serrated lobes.
Flowers in small umbels. A very low tree, almost a shrub; cultivated;
from Japan; probably hardy throughout. There are a great number of Japan
Maples, many of them probably varieties of this species, others hybrids.
The leaves of some are so divided and dissected as to form merely a
fringe or feather. In color they range from pure green to the richest
reds.

[Illustration: A. circinatum.]

12. =Acer circinatum=, Pursh. (ROUND-LEAVED OR VINE MAPLE.) Leaves
orbicular, with 7 to 11 serrated, acute lobes, a heart-shaped base,
reddish-green color, and both surfaces smooth. Corymbs of purplish
flowers, small and hanging on long peduncles; appearing after the
leaves. Wings of the fruit diverging in a straight line. A small tree or
tall shrub, 10 to 30 ft. high, of spreading habit, with smooth bark, and
pale brown twigs; cultivated; from the Pacific coast of North America.

[Illustration: A. Tartaricum.]

13. =Acer Tartaricum=, L. (TARTARIAN MAPLE.) Leaves ovate, slightly
cordate, rarely lobed, serrated, light-colored, expa