244 THE GREEiS-HOUSE CATALOGUE. 



VIOLARIE^. 



Vi^OLA arborescens, shrubby Violet, an undershrub, in- 

 troduced from Spain in 1799, and flowering in April and 

 May. It is a plant of little beauty, but of easy culture in 

 rich light soil, and propagation by cuttings in sandy loam 

 under a glass. 



loNi^DiuM polygalcefdliwn^ whirl-leaved lonidium, a pe- 

 rennial, introduced from South America in 1797, and flower- 

 ing in April and May. It grows in light loam, and is 

 increased by dividing at the roots or by cuttings. 



cisxraE^. 



CrsTus villdsus, villous Rock-rose, a low frame-shrub, 

 introduced from the South of Europe in 1640, and flower 

 ing in June and July. 



C. vagindfus, oblong-leaved Rock-rose, B. R. 225, a low 

 frame-shrub, introduced from TenerifFe in 1779, and flower- 

 ing in Aprils May and June. 



C. Ledon, many-flowered Gum-cistus, or Rock-rose, a 

 low frame-shrub, introduced from the South of France in 

 1730, and flowering in July and August. It is a most de- 

 sirable plant, where there is abundance of room, on account 

 of the profusion of large w^hite flowers, with dark spots on 

 the petals, with which it is covered for six weeks together. 



C. ladamferus, single-flowered Gum-cistus or Rock-rose, 

 B. M. 112. It is a low frame-shrub, introduced from Spain 

 in 1629, and flowering in June and July. It bears a con- 

 siderable resemblance to the last in its flowers, but has nar- 

 rower leaves, from which a sort of gummy resin continually 

 exudes. There is, a variety C. /. planifolms, the flat-leaved 

 Gum Rock-rose, 



C. monspeliensis, Montpelier Rock-rose, a low frame- 

 shrub, introduced from the South of Europe in 1656, and 

 flowering in June and July. 



