122 ARBORETUM ET FRUTICETUM BRITANNICUM. 
Genus II. 
NEGUNDO Mench. Tue Necunpo, or Box Exper. Lin. Syst. 
Dice‘cia Pentandria. 
Identification. Moench Meth., 334. ; Dec. Prod., 1. p.596. ; Don’s Mill., 1. p.647. and 651. 
Synonymes. A'cer Lin. ; Negundium Rafinesque. ; 
Derivation. This genus was constituted from A’cer Negéndo L.; but the meaning of the latter 
word is unknown. Probably, it may be merely the Illinois name of Gigueres (from giguwer, to 
romp, alluding to the tremulous and playful motion of the long pinnated leaves) Latinised. 
Gen. Char. Sexes dicecious. Flowers without a corolla. Calyx with 4—5 
unequal teeth. Male flowers upon thread-shaped pedicels, and disposed 
in fascicles; anthers 4—5, linear, sessile. Female flowers disposed in 
racemes. (Dec. Prod.) — Deciduous trees, natives of North America. 
Leaves compound, opposite, exstipulate, deciduous; impari-pinnate.— 
There is only one species in British gardens. 
* 1. N. Fraxiniro'Ltium Nutt, The Ash-leaved Negundo. 
Identification. Nutt. Gen. Amer., 1. Pp. 
253. ; Dec. Prod., 1. p. 596.; Don’s 
Mill. 1. p. 651. 
Synonymes. A‘cer Negindo L., Mich. 
Arb. ; N.aceréides Meench and Torr. 
% Gray; Negundiwm americanum 
‘afin.; the Ash-leaved Maple, the 
Black Ash; E/rable 4 Feuilles de 
Fréne, Fr.; E’rable 4 Giguiéres, Ili- 
nois ; Eschenblattriger Ahorn, Ger.; 
Acero americano, Ital. 
Engravings. Mich. Arb., 2. t. 16.5 
Schmidt Arb., 1. t.12.; Wats. Dend., 
t. 172.; the plate of this species in Arb. 
Brit., lst edit., vol.v.; and our jig. 164. 
from Schmidt. 
Spec. Char., &c. Leaves of from 
3 to 5 leaflets, the opposite 
ones coarsely and sparingly 
toothed, the add one oftener 
3-lobed than simple. (Dec. 
Prod.) A deciduous tree, of 
the middle size. Canada to 
Carolina, Height 15 ft. to 
30 ft.; in England 30 ft. to 
40 ft. Introduced in 1688. 
Flowers yellowish green, ap- 
pearing with the leaves; 
April. Keys brown ; ripe in 
August. Decaying leaves of a rich yellow. Naked young wood smooth, 
and of a fine pea green. The tree in the Hort. Soc. Garden is a male; but 
there is a female plant in the collection of W. Borrer, Esq.,  Henfield. 
Varieties. 
£ N. f. 2 crispum G. Don. (The plate in Arb. Brit., 1st edit., vol. v.; and 
our jig. 165.) — Leaves variously cut and curled. The plant of this 
variety in the arboretum of the Hort. Soc. is a male: the inflo- 
rescence consists of pendulous panicles of flowers, that are green, 
with some redness from the colour of the anthers; and each is 
_ Placed upon a slender peduncle of about 1 in. long. ; 
# ON. f. 3 violdceum Booth.— Young shoots covered with a violet bloom. 
This appearance is not uncommon in the young shoots of different 
species of A‘cer as well as in Negindo. 
» Neguindo fraxinifolium. 
