438 



THE DICTIONARY OF GARDENING, 



Dalbergia - continued. 



under a glass, and in a little bottom heat. Two of the 



most important are here described. 



D. latlfolla (broad-leaved). Black Wood. fl. white ; panicles 

 terminal. May. fr. lanceolate. I. pinnate ; leaflets roundish, 

 emarginate. h. 30ft. East Indies. A large deciduous tree, the 

 wood of which is extremely hard, and of a dark colour. It is 

 extensively employed for furniture, carving and fancy work, as 

 well as for gun carriages, Ac. (B. F. S. 240 



D. Sissoo. Sissoo-tree. /. white : panicles axillary, puberulous, 

 shorter than the leaves. May. I., leaflets five, alternate, petio- 

 late, obovate, abruptly acuminated, glabrous above, but pubescent 

 beneath, h. 30ft. Bengal, 1820. The wood of this species is 

 very durable, and is largely used in Bengal in the manufacture 



of gun carriages, railway sleepers, <fcc. 



. S. 25.) 



Dalea continued. 



D. mutabllis (changeable). /. at first white, but ultimately 

 changing to violet ; spikes cylindrical, at length becoming much 

 elongated, pedunculate. October. I. with five to ten pairs of 

 obovate or obcordate leaflets, h. lift. Mexico, 1818. Plant 

 erect, branched. Perennial. SYN. D. bicolor. (B. M. 2486.) 



D. Mntisii (Mutis's). fl. deep blue, disposed in dense cylindrical 

 heads, which are about IJin. long. July. I. with eight to ten 

 pairs of elliptic-oblong, obtuse leaflets. A. 2^ft. to 3ft. South 

 America, 1828. An elegant greenhouse perennial. SYN. Psoralea 

 Mutitii. 



DALECHAMPIA (named in honour of James Dale- 

 champ, 1513-1588, a French physician, botanist, and 

 philologist). Including Rhopalostylis (of Klotzsch). ORD. 



FIG. 611. SINGLE DAHLIA GEORGE CLARK, OR PARAGON IMPROVED VARIETY ILLUSTRATING FLOWERS SLTGHTLY REKLEXED. 



DAIiEA (named after Dr. Samuel Dale, an English 

 botanist of the last century, and author of a book on 

 Materia Medica). OBD. Leguminoaca. A genus of green- 

 house herbs, sometimes suffruticose at the base, often 

 beset with glandular dots. Leaves impari - pinnate, 

 haying the terminal leaflet sessile. Flowers purplish- 

 blue, whitish, or rarely yellow, disposed in pedunculate 

 spikes, which are opposite the leaves. More than a 

 hundred species are known. The headquarters of the 

 genus is Mexico, a few only being found in Chili and 

 the Andes. For culture, see Fsoralea. 



D. alopecuroides (Alopecurus-like). fl. whitish, in dense cylin- 

 drical silky-villous spikes. Summer. I. of many linear-oblong 

 leaflets, h. 1ft. to 2ft. United States. Annual. 



D. bicolor (two-coloured). A synonym of D. mutabilii. 



Euphorbiacece. There are above sixty species in this 

 genus, but very few of which are of any horticultural 

 merit. The one described below (perhaps the only one in 

 cultivation) is attractive on account of the brilliant rich 

 carmine-rose colour of the bracts. It thrives well in a 

 stove, and requires perfect drainage, and a mixture of 

 loam, peat, and leaf mould, in equal parts, to which 

 may be added a good portion of silver sand. Propa- 

 gated by cuttings. 



D. Roezliana (RoezTs).* fl. very fragrant ; peduncles slender, 

 thread-like, angular, 2in. to Sin. long, bearing at the top two 

 small ovate bracts, placed at the base of two large, broadly egg- 

 shaped, acuminate, denticulate, rosy-pink floral leaves ; within 

 these two are other smaller bracts, placed around and among the 

 male and female flowers, some of them thick and club-shaped, 

 and bearing at the top a fringe of short, yellow, waxy-looking 



