24(3 
CALCEOLARIA BICOLOR. 
(two-coloured slipperwort.) 
CLASS. ORDER. 
DIANDRIA. MONOGYNIA. 
NATURAL ORDER. 
SCROPHULARINEiE. 
Generic Character. — Calyx, four-cleft; Corolla , monopetalous, two-lipped, inflated. Capsule two- 
celled and four-valved. 
Specific Character. — Stem , erect, shrubby, from one to two feet high, branching, hairy. Leaves , oppo- 
site, obcordate, coarsely serrated, covered with soft downiness. Flowers cymose, two-coloured. 
Calyx yellowish green, downy. Corolla , upper lip very short, bright yellow, lower one large, in- 
flated, entire, from the base to the middle, white, and the remainder bright yellow. Stamens, two. 
Anthers , orange. Ovarium , conical. 
This showy plant is a native of Canta in Peru, where it was discovered by 
Mr. Cruckshank, who introduced it in 1829. 
It is a hardy green-house plant, and flowers very freely in the open air during 
summer, but requires to be taken up and sheltered in the green-house during winter. 
Light rich loam is the most suitable soil for it. 
The plant is propagated freely by cuttings of half ripened wood planted in 
small pots, and plunged in a little heat. Also by seeds, which are occasionally 
produced in abundance. 
Our drawing was taken in July fiom a plant flowering in the green-house at 
Chatsworth. 
Calceolarias, particularly the perennial herbaceous species, are now become very 
numerous, and in general are so beautiful, that they deserve a considerable share of 
attention. They are well calculated to give a great degree of interest to the flower- 
borders during the summer months, and by judicious management, the greater part 
may be made to contribute not a little to the decoration of the green-house, during 
October and November. 
There are now upwards of forty sorts cultivated in our gardens, and there is 
little donbt but that every year, many new varieties will be added to this already 
numerous genus, and in a few years, as Mr. Sweet observes, the species and varieties 
will become as numerous as the extensive family of geraniums, and be equally easy 
of culture. 
Probably all the British hybrids will stand well in a cold frame, or in any situa- 
tion protected from heavy autumnal rains and intense frost. 
When planted in light soil, most if not all of them will live through the winter, 
having no other protection than an inverted flower pot, full of dry litter, standing 
