NEGUNDO. XLIL ACERACEZ. 213 
color, as also the fruit. The wood is white, softer and less esteemed than that 
of other species. The sap yields sugar in smaller proportion than the sugar 
maple. 
3. A. saccHARINUM. Sugar Maple. Rock Maple. 
Lws. palmately 5-lobed, subcordate at base, acuminate, remotely toothed, 
with rounded and shallow sinuses, glaucous beneath; fis. pedunculate, pendu- 
lous.—This fine tree is found throughout U.S., but most abundant in the primi- 
tive soils of N. England, constituting the greater part of some of its forests. 
it is a tree of lofty proportions, 70f in height, with a trunk3f diam. The bark 
is of a light-gray color, rough and scaly. The branches become numerous and 
finely ramified in open situations, and in summer are clothed with a foliage 
of uncommon luxuriance and beauty, on which account it is more extensively 
cultivated as a shade tree than any other, not even excepting the majestic and 
favorite elm. Maple sugar, perhaps the most delicious of all sweets, is mostly 
the product of this species. An ordinary tree will yield 5—10 pounds in asea- 
son. The wood is very strong and compact, and makes the best of fuel. It is 
sometimes curled like the red maple, but oftener presents that beautiful ar- 
rangement of fibre, called bird’s-eye maple, which is highly esteemed in cabinet- 
work. The flowers are exceedingly abundant, and, suspended on long, thread- 
like pedicels, are most delicately beautiful. Apr. 
4. A. nicrum. Mich. f. Black Maple. Sugar Tree. 
Lvs. palmately 5-lobed, cordate, with the sinus closed, lobes divaricate, 
sinuate-dentate, paler beneath, with the veins beneath and petioles pubescent; fis. 
corymbose, on long, slender pedicels; fr. glabrous, turgid at base, the wings 
diverging.—A large tree, in mountainous situations, Vt. to Ia.! Resembles the 
last, but is distinct. Robbins., Tully. Trunk 30—50f high, with a shaggy 
bark. Leaves 3—5/ diam., dark-green above, the 2 inferior lobes much smaller. 
Flowers pendulous, on long peduncles, yellowish: Fruit with wings 1’ in 
length, pale-yellow, and more diverging than in A. saccharinum. The sap, 
like the last mentioned tree, yields sugar abundantly. Apr. 
§§ Flowers in racemes. Mostly shrubs. . 
5. A. PennsyLvanicum. (A. striatum. Lam.) Striped Maple. Whistle-wood, 
Lvs. with 3 acuminate lobes, rounded at base, sharply denticulate, smooth; 
rac. simple, pendulous.—A small tree or shrub 10—15f high, Can. to Ga., and 
Ky., but most abundant in our northern woods. The bark is smooth, and beau- 
tifully striped length-wise with green and black. Flowers large, yellowish- 
green, succeeded by long clusters of fruit, with pale-green wings. The smaller 
branches are straight and smooth, easily separated from the bark in spring, and 
are often manufactured by the boys into certain wind instruments. Hence it 
is called whistle-wood. In Europe it is prized in ornamental gardening. May. 
6. A. spicatum. Lam. Mountain Maple Bush. 
Iws. about 5-lobed, acute, dentate, pubescent beneath; rac. erect, com- 
pound.—A shrub of smaller stature than the last, found in mountain or hilly 
woods throughout the country. The bark is a light gray. Leaves small, rough, 
divided into 3 or 5 lobes, which are somewhat pointed, with large, sharp teeth, 
and more or less cordate at base. Flowers greenish, numerous and minute, in 
ple ae oblong, close, branched clusters, becoming pendulous with the winged 
|e 
7. A. Psgupo-PiaTinus. Sycamore.—Lws. cordate, 5-lobed, glabrous and 
glaucous beneath, segments or lobes acute, unequally dentate; jis. in long, 
pendulous racemes; samara glabrous.—Native of Northern Europe. Anorna- 
mental tree, 40—50f high, with very large, dark green leaves. A beautiful 
variety with striped leaves is also cultivated. Apr. May. + 
2, NEGUNDO. Mench. 
Flowers 2 d'; corolla 0; Q flowers racemed, & fascicled ; calyx, 
stamens and fruit as in the last genys,—Ler ies compound, pinnately 
