a4 XLII HIPPOCASTANACER. .. 
N. aceréipes. Meench. (Acer Negundo. Linn.) Asi-le 
Box Elder. ( fe — woo 
Ivs. ternate and 5-pinnate; /fts. ovate, acuminate, remotely and une- 
qually dentate; Q racemes long and pendulous, barren. fis. corymbose; fr. ob- 
long, with large wings dilated upwards——A handsome tree, 20—30f in height, 
with irregular, spreading branches, growing in woods. The trunk is a foot or 
more in diameter, and when young, covered with a smooth, yellowish-green 
bark. Leaflets serrated above the middle, petiolate, the terminal one largest, 
all slightly pubescent. Wings of the samara approximate, broadest towards 
the end. Apr. 
Orver XLITI. HIPPOCASTANACE A.—Bucxeyves. 
Trees or shrubs. Leaves opposite, rarely alternate, compound, without stipules. 
Fis. showy, with the otiaets articulated: ; ; si 
Cal. campanulate, of 5 united sepals. “ : 
Cor.—Petals 5, (one of them sometimes abortive,) unequal, hypogynous. 
Sta. 6—8; distinct, unequal,,inserted upon a disk with the petals. 
Ova. roundish, 3-cornered, 3-celled, crowned. with a single, filiform, conical style, 
Fr. roundish, coriaceous, with 1—3 large, roundish, smooth seeds. 
Genera 3, native of N. America and Northern India. The species are generally ornamental trees, with 
astringent properties residing in the bark. The seeds contain nauch starch, seh are nutritive but bitter. 
Only the following genus is found in'the Northern States, and even this is not indigenous in N. Eng. 
AESCULUS. 
Calyx campanulate or tubular, 5-lobed; corolla irregular, 4—5- 
petaled ; stamens, ovary and fruit, as expressed in the order.— Trees, 
with palmately 5—7-foliate leaves. Flowers im thyrse-like pamicles. 
1. AX. euaBra. Willd. (Pavia pallida. Spach. P. Ohiensis. Miche.) 
Ohio Buckeye. 
Lfts. 5, oval or oblong, acuminate, serrate or serrulate; fis. in lax, thyr- 
soid panicles; cor. 4-petaled, spreading, with the claws as long as the calyx; 
sta. longer than the corolla; fr. echinate-—A small, ill-scented tree, along the 
banks of the Ohio and its tributaries. Leaflets 3—6’ long, 3 as wide, subsessile, 
or abruptly contracted at base to short stalks. Flowers yellowish-white, small, 
slightly irregular. Fruit about ?’ diam. - 
2. A. ruava. Ait. (Pavia flava. DC.) Big Buckeye. Sweet Buckeye. 
Lfis. 5—7, oblong-ovate or elliptic-ovate, acuminate, serrulate, pubescent 
beneath; fis. in thyrsoid, pubescent panicles, about 6 on each. division of the 
peduncle ; cal. campanulate, not half the length of the corolla; pet. very unequal, 
connivent, longer than the stamens; fr. unarmed.—A large tree, 30—70f high, 
common in the Western and Southern States. Leaflets 4—7’, by 1—3’. 
Flowers pale yellow. Fruit globose, uneven on the surface, but not prickly, 
2—21' diam, with 1 or 2 large brown seeds. Apr. May. 
3. AE. pavia. (Pavia rubra. Lam.) Small Buckeye—Lfts. 5, oblong-lan- 
eeolate, cuneate at base, abruptly and shortly acuminate, finely serrate; fis. 
very irregular, in a lax, thyrsoid raceme, pet. 4, erect, as long as the stamens.— 
A beautiful shrub, 6—10f high, native of the Southern States. Flowers large, 
red, glabrous. Apr. May. f | 
4. JK. parvirLora, Walt. (/E. machrostachya. Michz.) native at the South, 
a beautiful shrub, with numerous small, white flowers, in a long, slender, thyr- 
soid raceme, is rarely cultivated. 
5. Ai. Hirpocastanum. Horse Chestnut.—Lvs. digitate, of 7 obovate leaflets ; 
pet. 5; spreading; fr. prickly—A noble tree, justly admired for its majestic 
proportions, and for the beauty of its foliage and flowers. It is a native of the 
north of Asia, but is now known throughout Europe and in this country, and is 
a frequent ornament of courts and avenues. It is of rapid growth, and attains 
the height of 40 or 50f. In June it puts forth numerous pyramidal racemes or 
thyrses of flowers, of pink and white, finely contrasting with the dark green of 
its massy foliage. The leaves are digitate, with 7 obovate, acute, serrate leaf- 
lets. The fruit is large, mahogany-colored, and eaten only by deer. 
