C. GRAVEOLENS.--This is a dwarf shrub, with neatly tripinnate leaves,
and solitary, strongly-scented yellow flowers of medium size. A native
of Chinese Tartary, and quite hardy.

C. LANUGINOSA.--China, 1851. A handsome species, with large purple
leaves that are hairy on the under sides. Flowers pale blue or lilac,
very large, and composed of six or eight spreading sepals. C.
lanuginosa pallida has immense flowers, often fully half a foot in
diameter. Flowers in June.

C. MONTANA.--Nepaul, 1831. This is valuable on account of its flowering
in May. It is a free-growing species, with trifoliolate leaves on long
footstalks, and large white flowers. C. montana grandiflora is a
beautiful variety, having large white flowers so abundantly produced as
to hide the foliage. It is quite hardy and of rampant growth.

C. PATENS (_syns C. caerulea_ and _C. azurea grandiflora_).--Japan,
1836. This has large, pale-violet flowers, and is the parent of many
single and double flowered forms. The typical form is, however, very
deserving of cultivation, on account of the freedom with which it
blooms during June and July from the wood of the previous year. It is
perfectly hardy even in the far north.

C. VIORNA.--Leather Flower. United States. This is a showy,
small-flowered species, the flowers being campanulate, greenish-white
within and purplish without. C. Viorna coccinea is not yet well known,
but is one of the prettiest of the small-flowered section. The flowers,
which are leathery as in the species, are of a beautiful vermilion on
the outside and yellow within.