THE NURSERY LIST. 263 



Rondeletia, Willdenovia, Rogiera. Rubiacece. 



Seeds. Cuttings of half-ripened wood, inserted in sand 

 under glass, in heat. 



Rosa (Rose). Rosacece. 



New varieties and sometimes stocks are grown from seeds, 

 which are sown as soon as ripe, or kept in the hips until 

 spring. The hardy kinds are usually sown in well prepared 

 beds out-doors. Roses are sometimes grown from layers, 

 and often from root-cuttings, after the manner of blackber- 

 ries. The common way of propagating roses, however, is 

 by means of short cuttings of firm or nearly mature wood, 

 handled under glass, with a mild bottom heat (of 65 or 70). 

 They are commonly made in February or March from forced 

 plants. The cuttings are made in various fashions, some 

 allowing most of the leaves to remain, and some preferring 

 to cut most of them off, as in Fig. 56. They are commonly 

 cut to one-bud lengths. Long cuttings of ripened wood, 

 handled in a cool greenhouse or in frames, may also be em- 

 ployed for the various perpetual and climbing roses. Most 

 growers feel that the best plants are obtained from cuttings, 

 but most varieties do well when budded upon congenial and 

 strong stocks. Budding by the common shield method is 

 considerably employed, and veneer-grafting is sometimes 

 used. The stocks are grown either from seeds or cuttings. 

 The commonest stock is the manetti (Rosa canina], which is 

 a strong and hardy species. The multiflora rose \R. polyan- 

 tha] is also a good stock, especially for early results. A stock 

 somewhat used about Boston for some of the hybrid perpet- 

 uals, with excellent results, is Rosa Watsonict, a Jaoanese 

 species. "Worked" roses are in greater favor in Europe 

 than in this country. 



Rosemary (Rosmarimis ojficinalis}. Labiatce. 



Seeds and divisions. 

 Rubus (Bramble). Rosacece. 



Seeds, which should be stratified or sown as soon as ripe. 

 Root-cuttings and suckers are mostly employed. The seeds 

 of R. deliciosus require two years for germination. See Black- 

 berry, Dewberry, Raspberry. 



Rudbeckia, including Lepachys, Obeliscaria (Cone Flower). 



Compositce. , 



Propagated by seeds or divisions. 

 Rue. See Ruta. 



