ROSEMARY SACALINE. 313 



Rosa, concluded. 



are in greater favor in Europe than in this country, and 

 our various native roses have, therefore, received httle 

 attention as stocks. The common sweet briar of the road- 

 sides (which is an introduced species) is sometimes used 

 for stocks. R. IVichuriana is easily propagated by long 

 cuttings of year-old wood in the open air. 



Rosemary {7?osmarinits ojficitialis'). Labiaice. 

 Seeds and division. 



Rubber-plant. See Ficus (/\ elastica). 



Rubus (Bramble). Rosacea. 



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 germina- 

 tion. See Blackberry, Dewberry, Raspberry, Wineberry. 



Rudbeckia, including Lepachys, Obeliscaria (Cone Flower). 

 Compositi^. 

 Propagated by seeds or division. 



Rue. See Ruta. 



Ruscus (Butcher's Broom, Alexandrian Laurel). Liliacece. 

 Root suckers. Also seeds, when obtainable. 



Rush. See Juncus. 



Russelia. Scrophulariaceo'. 



Seeds. Green cuttings under glass is the Cf.)mmon 

 method. 



Ruta (Herb of Grace, Rue). Rutaceir. 



Propagated by seeds, division and cuttings. Meadow 

 Rue, see Thalictrum. 



Sabal (Palmetto). Palmacea-. 



Propagated by seeds, and by suckers, which should be 

 taken when about one foot long. If they have no roots 

 they must be carefully handled. 



Sabbatia (American Centaury). Gentianacecc. 



May be raised from seeds, which should be sown thinly 

 in pans, or in a shady border. Division of old plants. 

 Sacaline, or Saghalin (Polygonum Sachaliiwiise). Poly- 

 gonacece. 

 Division of the roots (i. e., root cuttings) into small 

 pieces. 



