HARDY PLANTS. 
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drained border. Plant in spring, and at same time handle 
the roots carefully, as they are very brittle. Increased by 
seeds sown in sandy soil in a cold frame in spring, then grow 
on in pots till the following spring, when plant out. Seedlings 
do not flower till four years old. 
Ourisia. — O. coccinea is a dwarf trailing perennial, bear- 
ing clusters of brilliant scarlet, tubular, drooping flowers in 
summer. A native of the Chilian Andes, and a member of 
the Foxglove order (Scrophulariaceae). This handsome plant 
requires a little care in its cultivation. It should be grown in 
sandy peat in a moist, shady position on a rockery. . Some 
porous stone should be placed near it for the shoots to 
trail over. It will also do well with other peat-loving plants 
in a bog garden. Plant in spring. Increased by division in 
March. 
Oxalls (Wood Sorrel).— Hardy annuals or perennials, of 
easy culture, belonging to the Geranium order (Geraniaceae). 
O. Acetosella is the Common Wood Sorrel of our moist, shady 
woods. It forms a dense carpet of pale green downy foliage, 
and bears white, purple-veined flowers in summer. A good 
plant to naturalise in woodland gardens or under trees. O. 
corniculata rubra is a native annual or biennial, with crimson 
brown foliage and bright yellow flowers. This plant is some- 
times used for carpet bedding, also for covering bare, sunny 
banks and spots. It spreads very rapidly. O. purpurata (Syn. 
O. Bowei) is bulbous-rooted, a native of S. Africa, grows 6in. 
high, and bears rosy-red flowers in summer. Requires to 
be grown in sandy, well-drained soils in a sunny border. Often 
used as an edging to flower beds. O. luteola is another bul- 
bous-rooted speqies from S. Africa, bearing creamy-yellow 
flowers in summer. Other bulbous species are O. tetraphylla 
(Syn. O. Deppei), purplish-violet, a native of Mexico ; and O. 
variabilis, purple, lilac, white or yellow, S. Africa. These 
require the same treatment as O. Bowei. Of other species, O. 
floribunda, a Chilian species, bearing rosy flowers ; and O. 
lasiandra, a Mexican species, with crimson flowers, are very 
pretty kinds. The two latter are suitable for sunny rockeries 
or small borders. Grow in sandy soil and plant in spring. 
The bulbous kinds require to be planted three to four inches 
deep. All the oxalises are readily increased by seeds, the 
British ones by sowing outdoors in April, and the others in 
gentle heat in spring. Also increased by division or offsets 
in spring. 
Oxytropi9— Pretty pea-flowered plants of dwarf stature 
and suitable for rockery culture, or on dry banks. Members 
