
          20

41321. CANNA sp. Achira. Collected by Mr. O. F. Cook, in
the Urubamba Valley, Peru. A wild species found at altitudes of
6,000 to 8,000 feet. It is said to resemble closely the cultivated
Canna, but does not have enlarged fleshy rootstocks. The flowers
are of subdued yellowish and pinkish hues, with the middle of the
petals nearly orange-chrome. The calyx inclines to pinkish.

CARAGANA ARBORESCENS. Siberian pea tree. Hardy
ornamental shrub or small tree up to 20 feet high, with pale or bright
yellow flowers three-fourths of an inch long. Extensively grown in
Russia; trimmed low for ornamental hedges. Very drought resist-
ant; used by the Russian Government as a nurse tree in dry, young
timber tracts. For testing as an ornamental and as a windbreak in
cold regions.

CARAGANA FRUTEX. From the Royal Botanic Gardens,
Kew, England. A deciduous, leguminous shrub, up to 10 feet in
height, having long, supple branches, not much divided except near
the ends. The leaves are each composed of two pairs of leaflets.
Flowers bright yellow. A shrub graceful in habit and very handsome
when in flower.

42187. CARAGANA MICROPHYLLA. Altagana. From the
Royal Botanic Gardens, Kew, England. Ornamental leguminous
shrub of graceful habit, 6 to 10 feet high. It is easily distinguished
from all other caraganas by its leaves, which are composed of six to
nine pairs of very small dull grayish green leaflets, these being only
from one-eighth to one-third of an inch long. It forms a bush much
wider than high, which is very attractive when dotted with the nu-
merous yellow flowers three-fourths of an inch long.

42282. CARAGANA PYGMAEA. Dwarf pea tree. From
Kief, Russia. Deciduous, ornamental shrub, with light-green compound
leaves, the four leaflets being almost digitate in their arrange-
ment. The yellow bell-shaped flowers are fully an inch long. This
species and C. aurantiaca, which it closely resembles, are usually considered
the prettiest of the genus. Native of the Caucasus, Siberia,
and western Tibet.

40711. CARAGANA sp. From F. N. Meyer, Taochow, Kansu,
China. Spiny shrub of low, dense growth, found in dry loess soil
and in pebbly banks at altitudes of 9,500 feet and over. Used in
China as a hedge plant. Able to withstand low temperatures and
great drought ; of value as a hedge plant for the dry, colder sections
of the United States.
        