Roller 



(282 ) 



Rondeletia 



Only Species : 



jajKmica, 1', spr., wh. 

 variegata, Ivs. varie- 



nutans (see Tupistra 



nutans). 

 Tupistra (see Tupistra 



squalida). 

 ROLLER. 



Every garden should possess a roller, for where 

 gravel paths are to be well kept rolling is a neces- 

 sary operation. The size of the roller should be in 

 accordance with the width of the paths. Where 

 many paths exist, rollers of different sizes should 

 be kept, ranging in weight from 4 or 5 cwt. to 1 ton 



ROMNEYA. (THEE POPPY.) 



The only species (ord. Papaveraceas) is an orna- 

 mental plant with glaucous leaves and handsome 

 flowers. In cold situations it is safer not to cut 

 ; down the old stems until growth begins in spring. 

 Small plants should be used for planting, unless 

 they are turned out of pots. Propagation, by seeds. 

 sown in spring under glass, and grown ill single 

 pots after being pricked out. Good, deep, well- 

 drained soil. 



Only Species : 



Coulteri, 2' to l>', sum., wh. (we figure). 



' 



Photo : CasaeU it Company, Ltd. 



HoMNEYA CofLTER] 



or li tons. When making new paths it is advis- 

 able to roll twice, the first time with a light roller, 

 afterwards with a heavy one. The best time to 

 roll is after a fall of rain, as soon as the surface has 

 become slightly dry, so that the gravel will not 

 cling to the roller. Lawns are also improved by 

 an occasional rolling. 



ROMANOWIA. 



A dwarf stove Palm (ord. Palmse). One species 

 only, Nicolai, is known. It grows a few feet high, 

 and has a head of small pinnate leaves which are 

 divided into about a dozen segments each. Propa- 

 gation, by imported seeds. Soil, fibrous loam. 



ROMANZOFFIA. 



Hardy perennial herbs (ord. Hydrophyllacea;) 

 of tufted habit, resembling dwarf Saxifragas, and 

 well adapted for the rock garden. Propagation, 

 by division. They should be planted in sandy soil, 

 in crevices between large stones. 



Principal Species : 



sitchensis, 4", Ap., wh. (*yn. altera). 



ROMULEA. 



Greenhouse or hardy bulbous plants (ord. 

 Iridea;) of attractive appearance. They may be 

 cultivated in pots or borders. Propagation, by 

 offsets. Soil, light loam. The plants should be 

 well rested after flowering. 



Principal Species : 



ramiflora, 9", My., hdy., 



yel., lil. 

 rosea, 6", Jy., grh., ro., 



yel. at base. 



Bulbocodium, G", Je., 



hdy., yel., vio. 

 Columns:, 6", hdy., spr., 



greenish wh. , veins 



pur. 



RONDELETIA. 



Showy flowering stove evergreen shrubs (ord. 

 Rubiaceas). The small flowers are borne in large 

 bunches. Propagation, by cuttings of half-ripe 

 shoots, in sandy soil, in a warm propagating case. 

 Soil, equal parts of loam and peat, witli sand. 

 When growing, attention must be given to stop- 

 ping and tying. After the flowers are over the 

 plants should be well cut back, and restarted in a 

 moist house. A weekly syringing with a weak 



