424 FLOWERS OF GARDEN AND GREENHOUSE 



in the following year C. arachnoidea and C. thymijiora also from Chili, 

 and a hicolor from Peru in 1829. It then began to strike growers 

 that something might be done by crossing the species already at hand. 

 Experiments were made, and resulted in the production of a large 

 number of fine hybrids, which have been constantly added to since, with 

 the result that to-day few of the natural forms are grow^n at all, growers 

 confining their attention to the hybrids and their numerous varieties. 

 Many of the natural species, however, are well worth attention, and we 

 give descriptions of some of the best from a horticultural point of view. 

 Calceolaria alba (white). A low-growing perennial 

 "herbaceous shrub with toothed, linear leaves, and dense 

 panicles of globular pure white flowers produced all through the 

 summer. Hardy against a wall. Introduced from Chili, 1844. 



C. AMPLEXiCAULis (stcm-clasping). Stem herbaceous, 18 inches 

 high. Leaves heart-shaped, hairy, with rounded teeth, stem-clasping. 

 Flowers yellow, in umbellate clusters; May to July. Half-hardy. 

 Introduced from Peru, 184.5. 



C. ARACHNOIDEA (cob-webby). Stem herbaceous, with spreading 

 branches, 1 foot high. Leaves tongue-like, wrinkled, slightly toothed, 

 narrowed into a long winged stalk, which unites with its fellow on 

 opposite side of stem. Flowers purple ; June to September. Entire 

 plant, with exception of corolla, invested with cobweb-like wool. 

 Introduced from Chili, 1827. 



C. BicoLOR (two-coloured). Stems branched, woody-based, 2 to 3 

 feet high. Leaves broad-oval, wrinkled, with coarse round teeth. 

 Flowers in large terminal cymes; the small upper lip yellow, the 

 lower yellow and wdiite, gaping; July to October. Introduced from 

 Peru, 1829. 



C. BuRBiDGEi (Burbidge's). Stems 2 to 4 feet high. Leaves oval, 

 downy, doubly toothed, with winged stalks. Flowers rich yellow ; 

 September to January. A hybrid, produced in 1882, by crossing C. 

 Pavonii and C. fuchsioifolia. 



C. FoTHERGiLLii (FothergiU's). Stem herbaceous, slightly branched 

 at base, 3 to 6 inches high. Leaves spoon-shaped, hairy above. 

 Flowers yellow, the lower lip spotted with red ; May to August. 



C. FUCHSi^FOLiA (Fuchsia-leaved). Stem shrubby, 1 to 2 feet high. 

 Leaves lance-shaped. Flowers yellow, upper lip almost as large as the 

 lower; in terminal panicles; April and May. Introduced from Peru, 

 1878. 



C. Pavonii (Pavon's). Stem herbaceous, 2 to 4 feet high. Leaves 

 downy, broadly-oval, coareely toothed, footstalks with wings which are 



