ot milky 6.

=E.= Juice milky at the bases of the leaves 8, 9.

=B.= The lobes obtuse and sinuate 10.

* Leaves 5- to 7-lobed. (=F.=)

=F.= Lobes fully serrate 11.

=F.= Lobes sparingly serrate. (=G.=)

=G.= Juice milky 8, 9.

=G.= Juice not milky; leaves 8 to 10 in. broad 7.

=F.= Lobes somewhat sinuate, not serrate; juice milky 10.

* Leaves with 7 or more lobes 11, 12.

[Illustration: A. spicatum.]

1. =Acer spicatum=, Lam. (MOUNTAIN MAPLE.) Leaves with 3 (rarely 5)
coarsely serrated, taper-pointed lobes, with slightly cordate base;
downy beneath. Flowers greenish-yellow, in erect, slender racemes or
panicles, blooming in June. Wings of the small fruit at about a right
angle. Small tree, 6 to 10 ft. high, or usually a shrub, with brown
twigs. Native; growing in moist woods; rarely cultivated.

[Illustration: A. Pennsylvanicum.]

2. =Acer Pennsylvanicum=, L. (STRIPED MAPLE.) Leaves large, thin,
3-lobed at the end, cordate at base, finely and sharply doubly serrate.
Flowers greenish, in drooping, elongated, loose racemes appearing after
the leaves in spring. Fruit with large diverging wings. A small, slender
tree, with light green bark striped with dark red. Wild throughout and
cultivated.

[Illustration: A. dasycarpum.]

3. =Acer dasycarpum=, Ehrh. (SILVER OR WHITE MAPLE.) Leaves large,
truncated at base, 5-lobed, with blunt notches, the lobes irregularly
serrated and notched, silvery white, and, when young, downy beneath.
Flowers light yellowish-purple, preceding the leaves, in crowded umbels
along the branches. Wings of fruit large and forming about a right
angle; ripe early in June. A rather large, rapidly growing, and usually
somewhat weeping tree, with soft white wood. Special cut-leaved and
weeping varieties are sold at the nurseries. Wild along river-banks, and
extensively cultivated in the streets of cities.

[Illustration: A. rubrum.]

4. =Acer rubrum=, L. (RED MAPLE.) Leaves cordate at base and cleft into
3 to 5 acute-notched, irregularly toothed lobes, whitish beneath,
turning a bright crimson in early autumn. Flowers usually scarlet,
rarely yellowish, in close clusters along the branches, appearing before
the leaves in