54 ARBORETUM ET FRUTICETUM BRITANNICUM. 
# 1. Vr’tLa Pseu'po-Cy’tisus L. False-Cytisus, or shrubby, Cress- Rocket. 
Identification. Lin, Sp. 895.; Dec. Prod., 1. p.223.; Don’s Mill., 1. p. 254. 
Synonymes. Vélla integrifdlia Sal. ; Faux-cytise, fr. ; strauchartige (shrubby) Velle, Ger. 
Engravings. Cav. Ic., 1. 42.3; and our fig. 76. 
Spec. Char., §c. Petals yellow, with long dark 
purple claws. Larger stamens perfectly con- 
nate by pairs. (Don’s Mill.) A low sub- 
evergreen shrub. Spain, on calcareous hills. 
Height 2 ft. to 4 ft. Introd. in 1759. Flowers 
yellow; April and May.  Silique greenish 
yellow ; ripe in July. Decaying leaves yellow. 
Branches arched, spreading, somewhat decum- 
bent. Leaves glaucous green. Somewhat ten- 
der, but requires no protection in the climate of 
London, when planted on dry soil. It is a 
short-lived plant, like all the suffruticose Cru- 
ciferae, but it may readily be renewed by cuttings 76. Vélla Pseiudo-Cytisus. 
or seeds. 
Onver VIII. CISTA‘CER. ; 
Orv. CuAk. Sepals 5, two of them being exterior. Petals 5, very fugitive. 
Stamens numerous. Fruit capsular, 3—5-valved, 5-—10-celled, with pari- 
etal placentee. Embryo inverted. Properties balsamic. (Lindl. ) 
Leaves simple, opposite or alternate (the lowest leaves always oppo- 
site), stipulate or exstipulate, deciduous or sub-evergreen; generally pubes- 
cent, pubescence simple or stellate. Flowers large, showy, white, red, 
or purple.—Shrubs low, suffrutescent, many subherbaceous; natives of 
Europe and Africa. 
The Cistaceee have no medical properties ; but the resinous balsamic sub- 
stance called ladanum or labdanum is produced from C. créticus, C. lada- 
niferus, C. /aurifolius, and one or two other species. Their use in gardens is 
for ornamenting rockwork, or for keeping in pits during the winter, and planting 
out in flower-borders in spring ; as, from the tenderness of the finer species, 
they are unfit for a permanent place in a shrubbery or arboretum. Most 
of even the larger-growing kinds require some protection during winter : 
but they will all grow freely in any soil that is dry ; and they are readily 
propagated by seeds, which, in fine seasons, they produce in abundance, or 
by cuttings; the plants, in both cases, flowering the second year. Though 
easily propagated, the Cistaceze do not readily bear transplanting, having 
very few fibres, and these rambling to a great distance from the main root. 
Plants for sale ought, therefore, to be always kept in pots; and, in the 
winter season, they should be protected by some slight covering during 
severe weather. The hardy ligneous species are included in two genera ; which 
are thus contradistinguished by DeCandolle and G. Don: — 
Crstus L. Capsule 10—5-celled. 
Heuia/‘NTHEMUM Tourn. Capsule 1-celled, 3-valved. 
Genus I. 
JRICILI, 
CISTUS L. Tue Cisrus, or Rock Rose, Lim. Syst. Polydndria 
Monogynia. 
Derivatiun. From the Greek word kisté, a box or capsule, or the Anglo-Saxon, cist, 2 hollow 
