THE NURSERY LIST. 2 6l 



plied by cuttings of growing parts. Seeds should be 

 stratified. 



Rhaphidophora. Aroidece, 



Increased by seeds ; or by cuttings inserted in peaty soil 

 with bottom heat. 



Rliaphiolepis (Indian Hawthorn). Rosacece. 

 Seeds. Cuttings of firm shoots in a frame. 



Rheum (Rhubarb, Pie-plant, Wine-Plant). Polygonacece. 



Increased by seeds and by divisions. Each division should 

 contain at least one bud on the crown. Seeds may be sown 

 where the plants are to stand, but will not reproduce the 

 varieties. 



Rhipsalis, including Lepismium, Pfeiffera. Cactea. 



Cuttings, after having been dried for a few days, should be 

 inserted in coarse gravel or sand. See Cactus. 



Rhodanthe. Composite?. 



Propagated by seeds. 

 Rhodochiton. Scrophularinece. 



Propagated by seeds ; and cuttings of the growing wood 



Rhododendron, Azalea (Rose-Bay). Ericaceae. 



Seeds are largely employed, but they are small and light 

 and must be carefully handled. They are sown in spring in 

 pans or boxes in a soil of sandy peat, care being taken to cover 

 them very lightly and not to dislodge them when applying 

 water. They are handled in cold-frames or in a cool house, 

 and the young plants must be shaded. The plants are com- 

 monly allowed to remain a year in the boxes. Low growing 

 plants are often layered. Cuttings of growing wood, cut to a 

 heel, are sometimes employed, being made in summer and han- 

 dled in a frame, but the percentage of rooted plants will often 

 be small. Rhododendrons are extensively grafted, the veneer 

 method being most used. The operation is performed upon 

 potted plants in late summer or early fall, or sometimes in a 

 cool house in early spring. Most of the leaves are allowed 

 to remain upon the cion. The plants are then placed in 

 densely shaded cool frames, and are nearly covered with 

 sphagnum. Various stocks are employed, but for severe 

 climates the hardy species like R. Catawbtense and jR. max- 

 imum are probably best. R. Ponticum is extensively used in 

 Europe, but it is not hardy enough for the north. 



