94 
BEAUTIFUL GARDEN FLOWERS. 
Of the perennial Candytufts, the evergreen kinds 
like correxfolia, petrosa, Pruiti, saxatilis, semperfiorens, 
and sempervirens, all have white flowers in dense masses. 
They flourish in ordinary good garden soil, and are 
usually increased by cuttings in a frame or shady 
border about July or August. I. gibraltarica is a hand- 
some species requiring warm sheltered spots in the 
open air. It has clusters of white flowers often 
suffused with pink or purple. 
INCARVILLEA Delavayi. — This handsome fleshy- 
rooted Chinese perennial grows about 2 feet high, 
having coarsely-toothed leaflets and racemes of large 
tubular rosy-carmine flowers, spotted with brown and 
yellow in the throat. (Plate 28, fig. 76.) It flourishes 
in rich and well-drained soil, and may be increased 
by careful division after the flowers have faded or from 
seeds. Other good species are I. Koopmanni with 
mauve pink flowers ; and 1. Olgss, with rose or purple 
flowers. 
INULA glandulosa. — This ornamental Caucasian 
composite grows about 2 feet high, having oblong 
serrate leaves, and large bright orange flower-heads in 
July and August, with long, narrow, ray florets. 
Other species are I. grandiflora, I. Selenium , I. Hoolceri , 
and I. Oculus-Christi, all sturdy perennials, 2 to 3 feet 
high, with yellow flower-heads. Any good garden soil 
will suit these plants. They may be increased by 
division in spring, or from root cuttings. 
IPOMJEA. purpurea ( Convolvulus major ). — A beauti- 
ful climbing annual, with heart-shaped leaves and dark 
purple funnel-shaped flowers from June to September. 
J. versicolor (better known as Mina lobata) is another 
