RHI 



E 775 ] 



RHO 



R. brachia'ta (forked). Greenish-yellow. 

 March. Buenos Ayres. 1843. 



Cassy'tha (Cassutha). 1. Yellow. Septem- 



ber. \V. Indies. 1758. 



grandiflo'ra (large-flowered). I. White. 



July. S.America. 1818. 



Hookcria'na (Hooker's). 1. White. August. 



W. Indies. 



Mesembryanthoi'des (Mesembryanthemum- 



like). . White. S. America. 1817- 



parasi'tica (parasitic). 1. Yellow. S.Ame- 



rica. 1800. 



spat hula' ta (spathulate). Yellow. July. 



Brazil. 1836. 



RHIZO'PHOEA. Mangrove. (From 

 rhlza, a root, and phorco, to bear ; the 

 branches send down roots like the 

 Banyan-tree. Nat. ord., Mangroves 

 [Ehizophoracese]. Linn., ll-Dodccan- 

 dria l-Monogynia.) 



Not likely to be much cultivated until we ob- 

 tain salt-water aquariums in our large tropical 

 houses. The Mangrove flourishes in rich 

 loamy soil, in thickets, by the side of the ocean, 

 in tropical latitudes ; and possesses the striking 

 feature that the seeds vegetate while attached 

 to the plant, and send out a long radicle, which 

 generally reaches the soft mud, while the top 

 puts out leaves ; numbers of plants are thus 

 joined together, something in the same way as 

 the Banyan tree. 



11. ma'ngle (mangle). 10. Pale yellow. E. 

 Indies. 1820. 



RHODA'NTHE. (From rhodon, a rose, 

 and anthos, a flower. Nat. ord., Compo- 

 sites [Asteracese]. Linn., IQ-Synycnesia 



Greenhouse annual. Seeds, sown, in Sep- 

 tember, in a hotbed ; and also in March, for 

 plants to bloom in spring and summer ; sandy 

 loam, and leaf-mould, and fibry peat, to sow 

 and prick off in ; as the plants are put in their 

 flowering pots, use dried rotten cow-dung, and 

 silver sand freely. After the first potting, an 

 airy place in the greenhouse. 

 R. Mangle' sii (Captain Mangle's). 1$. Rose, 

 yellow. June. Swan River. 183'.}. 



RHODDON, or RODDON-TREE. Py'rtts 

 uucnpa'ria. 



EHODODE'NDRON. (From rJwdon, a 

 rose, and dendron, a tree. Nat. ord., 

 Heathworts [Ericaceae]. Linn., 10-Dc- 

 candria \-Monogynia.~) 



Seeds, in spring, in shallow pans, in sandy 

 peat, and kept in a close, cool frame until the 

 seedlings are fit to be handled, when they 

 should be pricked oif into similar soil, and gra- 

 dually exposed to sun and air ; layers, either 

 in spring or autumn ; cuttings of young 

 shoots when the base close to the older wood is 

 getting firm, inserted in silver sand, arid placed 

 at first in a cold frame, and afterwards in a 

 little bottom-heat ; sandy peat is the best ; 

 sandy fibry loam and clayey loam the next; 

 kitchen-garden soil, and soil of any kind con- 



taining or resting upon calcareous matter the 

 worst. The varieties of the arboreum, campa- 

 nulatum, &c., require a little protection to 

 have them in their beauty. 



STOVE EVERGREEN SHRUBS. 

 R. Brookea'num (Rajah Brooke's). Redish- 

 salmon. November. Borneo. 1848. 



gra'cile (slender). 6. Bright red. Borneo. 



1848. 



Java'nicum (Javanese). 4. Orange-red. 



All season. Java. 184/. 



longiflo'rum (long-flowered). 8. Crimson. 



Borneo. 1848. 



Nilagi'rivum (Neilgherry). Rose, white. 



May. Nepaul. 1840. 



verticilla'tum (whorl-leaved). Redish. Bor- 



neo. 1848. 



HALF-HARDY EVERGREEN SHRUBS. 

 R. anthopo'gon (bearded-cowered). 2. Purple. 

 May. Nepaul. 1820. 



arbo'reum(tre^. 20. Scarlet. May. Nepaul. 



1820. 

 barba'tum (bearded). Red. 



April. Nepaul. 1837- 

 cinnamo'nicum (Cinnamon). 



20. Purple. June. Nepaul. 1820. 

 ni'veum (snowy - white}. 20. 



White. March. Nepaul. 1817- 

 Paxto'nii (Mr. Paxton's). Crim- 

 son. May. Khoseea. 1837. 

 Rolliso'nii (Mr. llollisson's). 



Crimson. May. Nepaul. 1837. 

 ro'seum (rosy). 20. Rose. April. 



Nepaul. 

 sangui'neum (blood - coloured). 



20. Scarlet. April. Nepaul. 1817- 



campanula' turn (bell -flowered). 4. Pale 



pink. May. Nepaul. 1825. 



Gibso'nii (Gibson's). 5. White. May. 



Khoseea. 1837. Deciduous. 



Lappo'nicum (Lapland). . Crimson. 



April. Lapland. 1825. 



lepido'tum (scaly). 3- Rose. Nepaul. 1829. 



Metier ni'chii (Metternich's). Purple. May. 



Japan. 



scto'sum (bristly). 1. Purple. Nepaul. 1825. 



HARDY EVERGREEN SHRUBS. 



R. albiflo'rum (white - flowered). 2. White. 

 June. North America. 1835. 



barba'tum (bearded-/>eo/ed). 3. Nepaul. 



1829. 



camtcha'ticum (Kamtchatka). Purple. 



Kamtchatka. 1802. 



Catawbie'nse (Catawba). 4. Purple. July. 



North America. 1809. 



Catesba'i (Catesby's). 4. Purple. May; 



North America. 1810. 



Cauca'sicum (Caucasian). 1. Purple. Au- 



gust. Caucasus. 1803. 



strami'neum (straw-coloured). 



2. Straw. April. 



chamcEci'stus (Ground Cistus). . Pale 



purple. May. Austria. 1786. 



chrysa'nthum (yellow-flowered). . Yellow. 



June. Siberia. 1796. 



Dau'ricum (Daurian). 3. Purple. March. 



Siberia. 1780. 



atrovi'rens (dark - green) . 3. 



Purple. March. Siberia. 



