65 



38413, RHODODENDRON DAURICUM. An early flowering 

 Rhododendron. From A. Woeikoff, Novospassko, Russia. Decidu- 

 ous or seniievergreen shrub up to 6 feet high with bright, rosy-purple 

 flowers, 1 to \\ inches across. It is the earliest of rhododendrons to 

 flower, blooming in January or February. Not hardy in the North. 



RHUS JAVANICA. Sumac. Collected by F. N. Meyer, Kansu, 

 China. The most showy of sumacs when in bloom. Late-flowering 

 (August to September), tall shrub or flat-topped tree with large, 

 light-green, compound leaves with winged stalks; and creamy-white 

 flowers in large, broad panicles which are followed by deep-red, com- 

 pressed, hairy fruits. These are covered with a sticky, whitish wax 

 which burns readily. 



32390. RHUS LANCEA. From J. Burtt Davy, Pretoria, South 

 Africa. The karree boom of southwestern Transvaal and adjacent 

 Bechuanaland. Valuable hardwood tree with odd-pinnate leaves; 

 for regions of limited rainfall, 10 to 15 inches in winter. Fruits are 

 edible. Can be grown from poles in same manner as willows. 

 Belongs to the sumac family (AnacardiaceaB). 



40717. RHUS POTANINI. Sumac. Collected by F. N. Meyer 

 in mountains near Kuanyintang, Shensi, China. Tall shrub or 

 sometimes tree, 60 feet high. Foliage brilliant in fall. A gall insect 

 produces krge, inflated galls called "gall nuts," utilized extensively 

 for black dye, great quantities being exported from Hankow. Culti- 

 vation on cheap land might be attempted. Has weedy tendencies, 



37621. RIBES ALPINUM. Mountain currant. From R. 

 Irwin Lynch, curator, Botanic Garden, Cambridge, England. A 

 deciduous, unarmed shrub, 6 to 9 feet high, of dense, close habit. 

 Leaves broadly ovate, 3 to 5 lobed, shining on the under surface, 

 J to \\ inches long. Currants red, not edible. Although it has no 

 special beauty of flower or fruit, it makes a neat, pleasing hedge 

 shrub for cold regions, admirable for shady places. 



RIBES NIGRUM. Black currant. A collection of 16 different 

 varieties of this fruit, which ranks among the hardiest of all small 

 fruits for extreme northern localities. In England black currant 

 jelly and jam appear to be more keenly appreciated than they are 

 in America. These various imported varieties were furnished by 

 W. H. Fairfield, of the Canadian Government Experiment Station, at 

 Lethbridge, Alberta. 



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