150 A GARDEN FLORA 
RHAMNUS. Rliamnacese. 
R. caroliniana. Indian Cherry. E. United States. 
R. fallax. Carniolian Buckthorn. Alps of S.E. Europe. 
R. imeritina. W. Caucasus. 
R. purshiana. W. North America. 
RHAPHITHAMNTJS. Verbenacese. 
*R. cyanocarpus. Chile. 
Has grown on the west wall for some years. It 
is not very hardy, and late -growing shoots are often 
damaged by frost. 
RHODODENDRON. Ericaceae. 
R. altaclerense (arboreum x ponticum). Garden origin. 
R. ambiguum. W. China. 
R. amoenum. Japan. 
Syn. R. indicum, var. amoenum and Azalea amoena. 
R. Anthopogon. Himalaya. 
R. arboreum. Himalaya. 
„ var. album. 
„ var. Campbelliae. 
„ var. kermesinum, blood-red. 
„ var. seedling. *. 
R. Augustinii. Hupeh, China. 
R. azaleoides. Garden origin. 
Syn. R. fragrans and R. odoratum. 
R. barbatum. Himalaya. 
Height 9 feet. R. barbatum flowered in February, 
1916, and over a hundred blossoms were counted 
on a plant growing between a belt of trees and a 
north wall. The open flowers were damaged by 
frost, but not the buds. A plant in a more open 
position in the Wall Garden flowered a little later. 
R. barbatum cameum. 
Height 8 feet, 9 feet through. A pink form of 
R. barbatum, lacking on the stalk the bristles of 
the parent plant. It is hardy, and growing in a 
shaded position. 
tR. Boothii. Bhotan. 
R. brachycarpum. Japan. 
