XIII, ACERA‘CER, XIV. AESCULA‘CER. 123 
165. Negundo fraxinifdlium crispum. 
A rapid-growing tree ; very ornamental, from its compound leaves, and the 
fine pea-green of its young shoots; arriving at maturity in 15—20 years. 
American seeds, which ought to be sown as soon as possible, or layers, in any 
common soil. 
Other Species of Negindo.—N califérnicum Tor. § Gray, found by Douglas, 
is supposed to be a new species; but neither fruit, nor full-grown leaves, are 
described. 
Orver XIV. ASCULA'CEA, 
Ry Castana Link; Hipp anex Dec. 
Orb. CHAR. Calyx campanulate, 5-lobed. Ovary roundish, trigonal. Seeds 
large and globose; albumen wanting. Embryo curved, inverted; with 
tleshy, thick, gibbous cotyledons, not produced above ground in germination. 
Plumule large, 2-leaved. — Deciduous trees, natives of North America and 
Asia. 
Leaves compound, opposite, exstipulate, deciduous; leaflets 5—7, ser- 
rated. Flowers terminal, in racemes, somewhat panicled. — All the known 
plants of this order cross-fecundate freely, and by most botanists they are 
included in one genus; but so numerous are the garden varieties, that we 
have thought it more convenient to follow those authors who separate the 
species into two genera. These are 4@’sculus and Pavia, which are thus 
contradistinguished : — 
ZE’scutus L. Capsule echinated. 
Pa‘vi4 Boerh. Capsule smooth. 
