RIP 



C 781] 



ROC 



Greenhouse, white - flowered, evergreen 

 climbers, from New Holland. Cuttings of side- 

 shoots, when three inches in length, taken off 

 close to the stem, in sand, under a bell-glass, 

 in May; fibry loam, a little peat, sand, and 

 charcoal, and well-drained. Winter temp., 40 

 to 48. 

 JR. a'lbum (white). 3. June. 1820. 



parviflo'rum (small-flowered). 2. June. 1820. 



RI'VEA. (Named after A. de la Rive, 

 a Geneva botanist. Nat. ord., Bind- 

 weeds [Convolvulaceee]. Linn., Q-Pen- 

 tandria \-Monoqynia. Allied to Ipo- 

 moea.) 



Stove evergreen twiner. Cuttings of side- 

 shoots, and of the young shoots, several inches 

 in length, as they ri'se from the roots in spring ; 

 or grafting on a free-growing Ipomeu; fibry 

 loam and rough sandy peat. Winter temp., 

 55 to 60 ; summer, 60 to 85. 

 R. tiliatfo'tia (Lime-leaved). White. June. E. 

 Indies. 1812. 



RIVI'NA. (Named after A. Q. Rivi- 

 nus, a German botanist. Nat. ord., 

 Phytolaccads [Phytolaccacese]. Linn., 

 4- Tetrandria 1-Monoyyuia. ) 



Called rouge plants in the West Indies, 

 where the fruit is used as a cosmetic. Stove 

 evergreens. Seeds and cuttings. The flowers 

 are of little beauty, but the racemes of ripe 

 and ripening fruit are very interesting ; light 

 soil. Winter temp., 50 to 60 ; summer 60 

 to 80. 



R. Brazilie'nsls (Brazilian). 2. Green. June. 

 Brazil. 1790. 



hu'milis (lowly). 2. White. June. West 



Indies. 1699. 

 cane'scens (hoary). 2. White. 



June. West Indies. 1804. 

 lee 1 vis (smooth). 2. Pink. May. 



West Indies. 1/33. 



lanceola'ta (spear-head-teawZ). 3. June. 



Brazil. 1815. 



lutifo'lia (broad -leaved). Purple. July. 



Madagascar. 1826. 



octa'ndra (eight - stamened) . 2. White 



May. West Indies. 1752. 



purpura 1 scens (purplish). 2. Pink. June. 



West Indies. 1815. 



tincto'ria (dying). 4. White. May. Ca- 



raccas. 1830. 



ROAN TREE. Py'rus aucupa'ria. 



ROBE'RGUA. 



Should be added to Connarus, which see. 

 R. frute'scens (shrubby). 6. White. Guiana. 

 1823, 



ROBI'NIA. (Named after J. Robin, a 

 French botanist. Nat. ord., Leguminous 

 Plants [Fabacese]. Linn., 17-Diadel- 

 phia -1-Decandria. Gobbet's Locust-tree 

 is Robenia pseudo-acacia.} 



Deciduous, white-flowered trees, from North 

 America, where not otherwise stated. For 

 tender kinds, cuttings of young wood, in sand, 



under a glass. The Locust-tree, in all its 

 varieties, by seed sown in autumn, or preserved 

 in the pods and sown in the spring ; by cut- 

 tings of the shoots ; by cuttings of the roots ; 

 by suckers and layers. The finer varieties are 

 generally grafted. The Hispida rosea, or Rose- 

 acacia, is a fine object grafted on the Pseudo- 

 acacia standard, high in a sheltered place, not 

 much north of London. The finer varieties of 

 Hispida rosea, in cold situations, deserve a 

 place on a conservative wall, and would make 

 a nrce companion to the Glycine sinensis, &c. 

 JR. Davu'rica (Dahurian). 30. May. Davuria. 

 1820. 



du'bia (doubtful). 30. White, red. May. 



Guinee'nsis (Guinea). 6. Guinea. 1822. 



Stove evergreen. 



hi'spida (bristly. Rose Acacia). 10. Pink, 



July. 1743. 



macrophy'lla (large-leafleted). 10. 



Red. May. 



- na'na (dwarf). 1. Pink. June. 

 Carolina. 



ro'sea (upright-rose'). 10. Red. 



July. 



pseu'do-aca'cia (common. Bastard Acacia). 



40. May. 1640. 

 amorphcefo'lia (Amorpha-leaved). 3. 



White, red. May. 



cri'spa (curled). 40. June. 



flo're-lu'teo (yellow -flowered). 40, 



Yellow. May. 



ine'rmis (unarmed). 40. May. 



latisi'liquia (broad-podded). 30. May. 



macrophy'lla (large-leafleted). 30. 



May. 

 microphy'lla (small - leafleted). 30. 



May. 

 monstro'sa (monstrous) . 30. White, 



red. May. 



pe'ndula (drooping). 30. Pink. May. 



proce'ra (tall). 30. White, red. May. 



sophorcefo'lia (Sophora-leaved). 30. 



White, red. May. 

 specta'bilis (showy). 30. May. 



France. 

 stri'cta (upright). 30. White, red. 



May. 



tortuo'sa (twisted). 40. May. 



umbraculi'fera (umbrella-bearing). 



40. May. 



purpu'rea (purple), 15. Purple. July. 1810. 



Stove evergreen. 



visco'sa (clammy). 30. Purple. July. 1797. 

 ROCAMBOLE. A' Ilium Scorodo'prasum. 



Sometimes called Spanish Garlic, has 

 its bulbs or cloves growing in a cluster. 

 The stem bears many bulbs at its sum- 

 mit, which, as well as those of the root, 

 are much milder than Garlic. 



It is hest propagated by the root 

 bulbs, those of the stem being slower 

 in production. Plant either in February, 

 March, or early in April, as well as 

 throughout the autumn, in drills, or by 

 the dibble, in rows six inches apart 

 each way, and usually two inches within 

 the ground ; though the plants would 



