This section is from the book "The Standard Cyclopedia Of Horticulture Vol2", by L. H. Bailey. See also: Western Garden Book: More than 8,000 Plants - The Right Plants for Your Climate - Tips from Western Garden Experts.
(Greek, pleasant odor). Rutaceae. Ornamental woody plants grown chiefly for their handsome foliage.
Deciduous or evergreen trees or shrubs: trunk with smooth bark: winter-buds naked: leaves opposite, petioled, simple or pinnate with entire punctate leaflets: flowers in terminal or axillary panicles or corymbs, unisexual, usually 4-merous, less often 5-merous; sepals imbricate; petals valvate or slightly imbricate; stamens 4-5, at the base of a cupular disk: carpels 4-5, each with 2 ovules, nearly free or connate, with a cylindric style, at maturity dehiscent, 2-valved, 1-2-seeded. - About 50 species in E. Asia, from Korea and N. China to S. Asia., Austral, and Polynesia. Allied to Zanthoxy-lum which is easily distinguished by its alternate leaves; very similar in habit and foliage to Phellodendron which besides in the berry-like fruits differs in the winter buds being inclosed in the base of the petiole, while in Evodia they are borne free in the axils.
The cultivated hardy species are strong-growing deciduous trees with rather large pinnate leaves of aromatic odor when bruised, and with whitish flowers in terminal broad panicles followed by small capsules exposing glossy black seeds when opening. Evodia Daniellii has proved hardy at the Arnold Arboretum. E. glauca and E. Henryi, are somewhat tenderer. There are also a few tropical species from New Guinea, rarely cultivated as warmhouse evergreens; they are little known and their correct names have not yet been determined. Propagation is by seeds and of the warm-house species by cuttings of half-ripened wood; probably also by root-cuttings.
a. fruits obtuse or only mucronulate at the apex.
Miq. (E. Fargesii, Dode). Tree, to 50 ft.: leaflets 5-11, usually 7, on slender slightly hairy stalks,
1/4-1/3in. long, elliptic-ovate to oblong-lanceolate, long-acuminate, broadly cuneate or rounded at the base, minutely crenulate, glaucous below and glabrous except hairs along the midrib near the base, 2 1/2-4 in. long: infloresence corymbose, 6-8 in. broad, nearly glabrous; pistil of the staminate flowers glabrous: fruit about 1/4in. long, finely pubescent. June; fruit Sept. Cent. China.
aa. fruits strongly beaked. Henryi, Dode. Tree, to 35 ft.: leaflets 5-9, short-stalked, ovate-oblong to ovate-lanceolate, long-acuminate, rounded or narrowed at the base, finely crenulate, glaucescent or pale green below and glabrous, 2 1/2-4 in. long: infloresence paniculate, 2 - 2 1/2 in. across: fruit reddish brown, sparingly hairy, 1/4in. long, with slender beaks about half as long. June; fruit Sept. Cent. China. See page 3568.
(Zanthoxylum Daniellii, Bennett). Small tree: leaflets 7-11, ovate to oblong-ovate, acuminate with an obtusish point, rounded at the base, sometimes subcordate or broadly cuneate, pale green below and glabrous except hairs along the midrib and sometimes on the veins, 2-3 1/2 in. long: infloresence corymbose, 4-6 in. across: fruit nearly 1/3in. long, slightly hairy or nearly glabrous, with a rather short, usually hooked beak. June; fruit Sept. N. China, Korea.
E. elegans, Hort. Evergreen: leaves 3-foliolate; lfts, linear-lanceolate, undulate and crenate; resembling Aralia elegantissima. New Guinea. F.E. 1899:291. Gng. 12:404. G. 21:273. - E. formosa, Hort. A similar species, introduced in 1900 by Sander & Co. This and the preceding are warmhouse evergreens and belong probably to species already described. - E. officinalis, Dode. Allied to E. glauca. Small tree: leaflets 5-11, ovate to elliptic-oblong, acuminate, pubescent and light green beneath: infloresence pubescent: fruit glabrous, Cent. China. - E. rutaecarpa. Hook. f. & Thorns. Allied to E. glauca. Small deciduous tree: 1ft. short-petioled, broader, pubescent on both sides: infloresence smaller and denser, with stout pedicels, pubescent, Japan, Himalayas. S.Z. 1:21 (as Boymia rutrecarpah - E. reliuina. Rehd. & Wilson. Allied to E. Henryi, but leaves and young branchleta densely short-pubescent: fruiting corymb 4-8 in. across. Cent. China.