Trees, Shrubs, and Woody Climbers 37 



The best of the North American Rhododendrons include albiflorum, 

 creamy white; calif ornicum, rose purple; catawbiense, sulphur yellow, 

 with a white variety (Cunningham's White) which is largely used as a 

 stock; rnaximum, pale rose or white, spotted red and yellow; and punc- 

 tatum, rose. To these may be added R. Rhodora (better known as 

 Rhodora canadensis), a deciduous shrub, 3 ft. high, with sweet-scented 

 purple flowers. 



Amongst European species are caucasicum, 3 ft., rose, white inside, 

 spotted with green; ferrugineum, the Alpine Rose, 1 ft., scarlet or rose red, 

 with several varieties. Closely related is R. hirsutum, 1-2 ft., pale red or 

 scarlet; Smimowi, 3-6 ft., crimson purple. 



Apart from the Sikkim Rhododendrons, Asia, including China and 

 Japan, has also supplied some good kinds, such as Anthopogon, 1-2 ft., 

 sulphur yellow; Collettianum, 8-10 ft., white; dauricum, 3 ft., rose, 

 January to March; Mettemichi, rose; primulinum, 1J ft., pale yellow, &c.; 

 racemosum, 1 ft., pinkish white; yedoense, rose pink; and yunnanense, 

 4 ft., white or pale lilac. 



As to garden hybrid Rhododendrons, several thousands of kinds have 

 now been raised, one of the first being altaclerense (catawbiense x ponti- 

 cum), with brilliant scarlet blooms, in 1835. The range of colour is great, 

 but ranges between pure white or blush white, pink and rose, purple, 

 magenta, and claret, up to deep crimson and scarlet. Some three or four 

 hundred varieties have received fancy names, and the reader is referred 

 to the catalogues of specialists for these. Some names are to be found 

 in all when the varieties are universally 

 popular, and this rule applies with par- 

 ticular force to the exquisite "Pink 

 Pearl", which has become so famous 

 during recent years. Fuller details as 

 to species, varieties, hybrids, &c., will 

 be found in the Practical Guide to 

 Garden Plants (Longmans), and in Mr. 

 W. Watson's book on Rhododendrons 

 and Azaleas. 



Rhodotypos kerrioides. A pretty 

 Japanese shrub with deeply serrated 

 leaves and white flowers in May. In- 

 creased by layers, division, or cuttings. 



Rhus (SUMACH). There are some 

 120 species in this genus, mostly shrubs 

 or low trees, with graceful foliage, 

 many with resinous, caustic, or even 

 poisonous juice. R. cotinoides (fig. 433), 

 the " Chittam Wood ", grows 20-35 ft. 

 high in the United States. Its undivided leaves assume brilliant shades 

 of scarlet and crimson suffused with yellow and orange in autumn. 



Fig. 433. Khun cotinoidet 



