286 Evicacee—-A zalea. 
Leaves Persistent. 
The species belonging to this division are not so hardy as 
the foregoing, and usually treated as greenhouse plants. They 
are usually of smaller more compact growth. The Indian 
Azaleas have sprung from A. Indica (fig. 160), and some other 
species or natural varieties introduced from China. Some of 
these forms, as A. lilviflora (fig. 161), are said to be quite 
hardy. 7 
9. KALMIA. 
Evergreen shrubs usually of small stature and compact 
habit. Leaves alternate, eutire. Flowers solitary or corymbose, 
hemispherical or broadly campanulate. This genus is remark- 
able for having projecting cavities in the corolla holding the 
stamens until they are mature, when the slightest touch of the 
filaments will release them and cause the anthers to discharge 
their pollen. There are about half-a-dozen species, all natives 
of North America. This genus was named in honour of a 
Swedish botanist. 
1. K. latifolia (fig. 162). Calico Bush, Mountain Laurel.— 
This is the handsomest of 
the group, having shining 
alternate foliage of a pleas- 
ing verdure, and dense 
clusters of exquisitely ele- 
gant delicate pink, rose or 
nearly white flowers, pro- 
duced from May to July. 
2..K. angustifolia. Sheep 
Laurel or Lambkill.—In 
this species the leaves are 
usually opposite or in 
threes, and narrower, and 
the flowers are of a deeper 
colour and smaller, than in 
the last. 
3. K. gluica.—A strag- 
eling shrub with com- 
pressed 2-cdged branches and nearly sessile glaucous leaves 
with revolite margins. Corymbs few-flowered; flowers lilac- 
purple, produced in April. AY Aivsita has hairy leaves and soli- 
tary axillary rosy flowers. This shrub grows about a foot high. 
Fig. 162, Kalmia latifolia. (4 nat, size.) 
