GARDEN FLOWERS. 323 



shrub ; 4 feet ; flowers salmon or copper-color, in February ; 

 Java; 1847. R. Ponticum (Pontic) ; hardy evergreen shrub; 6 

 feet; flowers purple, in May; Gibraltar; 1763. This has 

 sported into numerous varieties of various colors. 



Almost all the species of Rhododendron are worth plant- 

 ing out doors, especially such of the Indian ones as ulti- 

 mately prove hardy ; the tenderer sorts being the best of all 

 plants, along with Camellias, for cold conservatories. The 

 following are fine varieties, hardy enough to withstand a New- 

 England winter : Archimedes, album elegans, album grandi- 

 florum, atrosanguineum, Barclayanum, Blandyanum, Bray- 

 anum, Chancellor, Columbus, Delicatissimum, Due de Brabant, 

 Everestianum, giganteum, Leopardii, lucidum, Marc Antony, 

 Nero, ornatum, Pardoleton, pictum, perspicuum, purpureum 

 elegans and grandiflorum, roseum elegans, grandiflorum, pictum 

 and superbum, Sherwoodianum, Victoria. 



RHUBARB. See RHEUM. 



RHUS. Sumach. [Anacardiaceae.] Hardy deciduous 

 shrubs. Light loam. Increased by seeds, layers, or cut- 

 tings. 



ORNAMENTAL SHRUBS. JR. copallina, R. Coriaria, R. Cotinus, 

 R. typhina. 



RIBES. Currant. [Grossulariaceae.] An extensive fami- 

 ly of hardy shrubs, well suited for shrubberies. The very 

 best, which grows freely in ordinary garden soil, is R. san- 

 guineum, a deciduous plant, which about May is decorated 

 with drooping bunches of scarlet blossoms. Of this there 

 is a very handsome double-flowered variety, and another in 

 which the blossoms are white. They are propagated with- 

 out difficulty either by layers or by cuttings. 



R. aureum prcecox (early) ; hardy shrub ; 4 feet ; flowers yel- 

 low, in March ; North America 51812. R. sanguineum (bloody) ; 

 hardy shrub ; 4 feet ; flowers red or white, single or double, in 



