AUBRIETIA (named after M. Aubriet, a famous French botanical draughtsman). ORD. Cruciferae. A small genus of hardy evergreen trailers. Racemes opposite the leaves, and terminal, lax, few-flowered. Leaves ovate or oblong, entire or angularly toothed, hairy. They make excellent rock plants, and will thrive in a deep rich loam anywhere, excepting under the shelter of trees. Cuttings struck, or seeds sown, during April or May generally make fine, dense, cushion-like growths, if transplanted on to a somewhat cool or shaded border, and carefully lifted in the autumn; the cuttings are best "drawn," or grown until they are soft, in a frame before they are removed. Where a stock of old plants exist, layer the long slender branches any time after flowering, and cover with a mixture of sand and leaf soil; they will then root freely and establish themselves in time for spring blossoming, for which purpose, when grown en masse, they are most useful. After flowering, they may be divided and transplanted. AUBRIETIA deltoidea (deltoid).* fl. purple; petals twice the length of the calyx; pedicels short, filiform; racemes opposite the leaves and terminal, lax, few-flowered. Early spring. l. with one or two large teeth on each side (therefore they are rhomboidal, not truly deltoid), scabrous, with short branchy stellate hairs. h. 2in. to 4in. Naples, &c., 1710. There are several garden varieties, the best of which are described below; most of them are regarded as distinct species. (S. F. G. 628.) AUBRIETIA d. Bouganvillei (Bouganville's).* fl. light violet purple, with very even imbricated petals. Habit very dwarf and compact, with short peduncles. A pretty form. AUBRIETIA d. Campbelli (Campbell's).* Larger deep violet blue flowers, and of far more vigorous constitution than the typical form. Grandiflora comes very near this. SYN. AUBRIETIA Hendersonii. AUBRIETIA d. Eyrei (Eyre's).* A very fine variety, with a free branching habit, and large flowers of a rich violet-purple colour, rather longer than broad. AUBRIETIA olympica is very near, if not identical with this. AUBRIETIA d. graeca (Grecian).* fl. light purple. h. 4in. Greece, 1872. One of the best and largest flowered forms; very vigorous grower, with neat compact habit. A variety of this, named superba, has rather deeper-coloured flowers, produced over a very extended period. (R. G. 697.) AUBRIETIA d. purpurea (purple).* Larger flowers and more erect habit than the type. l. broader, with two to five teeth. Stems more leafy. There is a variegated form, which is very pleasing and effective, useful for carpeting or edging small beds. AUBRIETIA d. violacea (violet).* This is hybrid form, even finer than Campbelli, with large deep violet-purple flowers, fading to reddish-violet, and is more effective than any of the others. AUBRIETIA Hendersonii (Henderson's). A synonym of AUBRIETIA d. Campbelli.