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 hand- 

 some 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 com- 

 pound 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 con- 

 sidered 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. 



