CULTIVATED SPECIES 
109 
feet high; with oblong leathery leaves, green above, rust 
hairy beneath, 6 inches long. Flowers in compact heads, 
bell-shaped, rose-pink. Hardy. 
R, micranthum. — China. 1900. A bush 4-20 feet 
high. Leaves obovate, dark-green, rust-scaly beneath, 
inch long. Racemes, 2 inches long, composed of small 
white flowers | inch in diameter. Tender. 
R, modestum, — Himalaya. 1887. A small, much- 
branched shrub. Evergreen. Leaves elliptic, 3 inches long, 
leathery, clothed with dark, puncture-like scales. Flowers 
in loose umbels, bell-shaped, i inch across, pink with 
crimson spots. Allied to R. ciliatiim. Tender. 
R. mucronulatum. — Central Asia. 1907. A dwarf, 
deciduous shrub, allied to R. dahuricum. Leaves scattered, 
thin, lanceolate, 3 inches long, scaly. Flowers in clusters 
of 2-5, shallow, bell-shaped, bright rose. Hardy. 
R, multicolor, — Sumatra. 1884. A small, slender 
shrub. Evergreen. Leaves in whorls, narrow lance-shaped, 
3 inches long, green. Flowers in loose umbels, nodding, 
bell-shaped, i inch long, crimson or yellow. Green- 
house. 
R. niveum. — Himalaya, 12,000 feet. 1850. A stout 
shrub. Evergreen. Leaves lance-shaped, about 6 inches 
long, mealy tomentose beneath. Flowers in compact 
heads, bell-shaped, lilac-purple, 4 inches long, lobes small, 
rounded. Tender. 
R, nudiflorum, — N. America. A shrub up to 8 feet. 
Deciduous. Leaves soft, pubescent, ovate, 1-3 inches long. 
Flowers produced with leaves, tubular, i inch long, light 
rose to purple. There are numerous colour forms. Hardy. 
R. Nuttallii, Bhotan, 5000 feet. 1859. ^ straggling 
shrub, often epiphytic. Evergreen. Leaves elliptic, leathery, 
