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, i 

 inch long. Racemes, 2 inches long, composed of small 

 white flowers j 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. ciliatum. 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. A straggling 

 shrub, often epiphytic. Evergreen. Leaves elliptic, leathery, 



