BUCKTHORN FAMILY. Rhamnaceae. 
Spicuous nerves. The small, sweet-scented flowers are 
crowded in compact, creamy clusters, sometimes four or 
five inches long, very handsome, but not so delicate as 
Deer-brush. This is common on hillsides and in the 
mountains, up to seven thousand feet. 
A graceful shrub, or small tree, six to 
tnt ghee fifteen feet tall, the slender trunk and 
Mountain Lilac 
Ceaiiattin § branches covered with dull yellowish- 
integérrimus green bark and the bright green foliage 
White, blue setting off the feathery flower clusters, 
are: two to six inches long, scattered lightly 
Waeh:,- Ariz’ over the bush and composed of innumer- 
able, tiny, sweet-scented blossoms. The 
leaves are alternate, half an inch to three inches long, 
toothless, thin in texture, very slightly downy or smooth, 
with three veins, and the flowers cream-white, occasionally 
blue or pink, with conspicuous stamens, which give the 
plume-like sprays a delicate foamy effect against the dark 
_ forest background. This shrub is a beautiful sight when 
in flower and sometimes covers the mountainsides with 
drifts of snowy bloom, filling the air with delicate perfume. 
It is quite variable and sometimes has dark shiny leaves 
and small compact clusters of flowers. It is often called 
White Tea-tree, because the bark is used medicinally. 
An attractive mountain shrub, growing 
Blue Mountain in Yosemite, and elsewhere in the Sierra 
Pp Nevada Mountains at similar altitudes, 
parvifolius low and spreading, about three feet high, 
Blue with smooth, pale green branches and 
te we small, smocth, toothless leaves, dark 
California 
green and shining on the upper side, pale 
on the under. The oblong clusters of minute blue flowers 
are slightly sweet-scented and about two inches long. 
MALLOW FAMILY. Malvaceae. 
A large family, widely distributed; mostly herbs, with 
mucilaginous juice and tough, fibrous bark; leaves alter- 
nate, mostly palmately-veined and lobed, with stipules; 
flowers regular, perfect, or the stamens and pistils on 
different plants; sepals five, often with an outer row of 
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