ROSTELLERA 



757 



RUBUS 



Hardy evergreens, purple-flowered, and natives of 

 Mediterranean regions. See ROSEMARY. 

 R. officina'lis (shop). 4. February. 1548. 

 ,, fo'liis-arge'nteis (silver-leaved). 4. March. 1548. 

 ,, fo'liis-au'reis (golden-leaved). 12. February. 1548. 

 ,, latifo'lius (broad-leaved). 12. February. 1548. 

 ,, prostra'tus (prostrate). March. 1906. Habit 

 prostrate. 



ROSTELLFRA. See MALLOTUS. 



ROTATION OF CROPS. There are three circumstances 

 to be regarded in regulating the order in which crops 

 should follow each other: i. Each crop should be as 

 dissimilar as possible from its predecessor. 2 . The exuviae 

 of the preceding crop should not be offensive to its suc- 

 cessor. 3. A spindle-rooted crop should succeed a 

 fibrous-rooted crop, or vice versa. 



RO'THIA. (Named after A. W. Roth, a German 

 botanist. Nat. ord. Leguminous Plants [Leguminosa?]. 

 Linn. i6-Monadtlpia, 6-Decandria.) 



Hardy trailing annual. Seeds in a warm border, in 

 April. 



R. trifolia'ta (three-leafleted). 2. Sulphur, red. July. 

 India ; Australia. 1820. 



ROTHMA'NNIA LONGIFLO'RA. See RANDIA MACU- 



LATA. 



ROTTLE'RA. See MALLOTUS. 

 ROUGE PLANT. Rivi'na tincio'ria. 



ROU'PALA. (From roupala, the Guianan name. Nat. 

 ord. Proteads [Proteaceae]. Linn. ^-Tetrandria, i-Afono- 

 gynia.) 



Greenhouse evergreen, fine foliage shrubs, from Guiana, 

 except where otherwise stated. Cuttings of ripe shoots 

 in sand, under a bell-^lass, not hurried, but freed from 

 damp, and placed in bottom-heat after a few weeks ; 

 fibrous loam and sandy peat. Winter temp., 45 to 48 ; 

 a rather sheltered place in summer. 

 R. au'rea (golden). See R. POHLII. 



boissieria'na (Boissierian). Yellow. Colombia. 1853. 



complica'ta (complicated). 6-8. Trop. Amer. 1853. 



,, corcovade'nsis (Corcovadan). See R. POHLII. 



crena'ta (round- toothed). S. Amer. 



denta'ta (tooth-leaved). 10. Green. June. 1802. 



e'legans (elegant). Brazil. 



heierophy'lla (various-leaved). Brazil. 1863. 



macrophy'Ua (large-leaved). BrazU. 1863. 



me'dia (mediate). 10. May. 1823. 



,, n-.onta'na (mountain). See R. MEDIA. 



,, ni'tida (shining). Pale yellow. 1821. 



obova'ta (reverse-egg-shaped). 10-25. Colombia. 1855. 



Po'hlii (Pohl's). Orance-red. Stem and leaf-stalks 

 golden-haired. Brazil. 



Poorima'nni (Poortmann's). Red. Plant reddish- 

 brown haired. 1883. 



sessilifo'lia (stalkless-leaved). See PANOPSIS HAME- 

 LLE FOLIA. 



Ski'nneri (Skinner's). Gardens. 



venainea'na (V'ervainean). Gardens. 



ROUTE LLIA. (Commemorative of the Roupell family, 

 patrons of botany and horticulture. Nat. ord. Apocy- 



A climbing stove shrub, with fragrant flowers. Cuttings 

 in sand, in a close case, with bottom-heat. Peat and 

 loam, both fibrous, and sand. 



R. grata (grateful). White, tinted pink. May. Trop. 

 Africa. 



ROU'REA. (Probably a commemorative name. Nat. 

 ord. Connaraceae.) 



Stove, evergreen shrubs. Cuttings in sand, in bottom- 

 heat. Loam, peat, and sand. 



R. frute'sens (shrubby). 3-6. White. Guiana. 1823. 

 fu'lgens (shining). Singapore. 



ROWAN TREE. Py'rus Aucupa'ria. 



ROXBURGfflA. (Named after Dr. Roxburgh, once 

 director of the Botanic Garden, Calcutta. Nat. ord. 

 Roxburghworts [Roxburghiaceae]. Linn. 8-Octandria, i- 

 Monogynia. Now referred to Stemona.) 

 R. gloriosoi'des (Gloriosa-like). See STEMONA TUBEROSA. 

 tiridiflo ra (green-flowered). See STEMONA TUBEROSA. 



ROYAL BAY. Lau'rus no'bilis. 

 ROYAL FERN. Osmu'nda rega'lis. 



ROY'DSIA. (Commemorative of Sir John Royds, a 

 judge of Bengal. Nat. ord. Capparidaceae.) 



A free-flowering, sweet-scented stove shrub. Cuttings 

 in sand, in bottom-heat, and kept dose. Fibrous loam, 

 leaf-mould, and plenty of sand. 



1?. suave 1 olens (sweet-smelling). Calyx dull red ; stamens 

 yellow. Winter. Himalaya. 



ROYFNA. (Named after A. Van Royen, a Dutch 

 botanist. Nat. ord. Ebenads [Ebenace*]. T.jnn. 10- 

 Decandria, z-Digynia. Allied to Diospyros.) 



Greenhouse evergreen shrubs, from South Africa, all 

 but one white-flowered. Cuttings of half-ripe shoots in 

 sand, under a bell-glass, in April or May ; sandy loam 

 and fibrous peat. Winter temp., 40 to 48 : summer, 

 60 to 75. 



R. gla'bra (smooth). 4. September. 1731. 

 hirsu'ta (hairy-leaved). 7. Purple. July. 1752. 

 ,, latifo'lia (broad-leaved). 5. June. 1816. 

 lu'cida (shining-leaved). 4. May. 1690. 

 i myrtifo'lia (myrtle-leaved). See R. GLABRA. 

 ! pa'llcns (pale). S. Africa. 



pube'scens (downy). See R. FALLENS. 

 villo'sa (shaggy). S. Africa. 



ROY'LEA. (Named after Professor Royle, King's 

 College, London. Nat. ord. Labiates [Labiata>]. Linn. 

 H-Didynamia, i-Gymnospermia. Allied to Ballota.) 



Greenhouse evergreen shrub. Cuttings of young 

 shoots in spring, in sandy soil, with a bell-glass over 

 them ; sandy loam and leaf-mould. Winter temp., 40 

 to 48. 

 R. e'legans (elegant). 2. Purple. July. NepauL 1824. 



RUBE'NTIA. (From rubens, red, the participle of 

 rubeo, to be red ; it applies to the red wood. Nat. ord. 

 Tiliaceae. Now referred to Ela?odendron.) 

 R. angustifo'lia (narrow-leaved). See EL^ODENDRON 



ORIENT ALE. 



,, olivi'na (olive-like). See EL/EODENDRON ORIENTALS. 



RU'BLA. Madder. (From ruber, red ; the colour of 

 the roots. Nat. ord. Rubiads [Rubiaceae]. Linn. 4- 

 Tetrandria, i-Monogynia.) 



Half-hardy species, from cuttings in spring, under a 

 hand-light, and peat and loam ; the others are herbaceous 

 plants, propagated by division of the roots, and flourishing 

 in any good garden-soil; from tincio'rum madder is 

 obtained. 



HALF-HARDY EVERGREEN'S. 



R. angustifo'lia (narrow- leaved). 2. Pale yellow. July. 



Spain. 1772. 

 sple'ndens (shining). See R. PEREGRINA. 



HARDY HERBACEOUS. 



R. ala'ta (winged). See R. CORDIFOLIA. 

 ,, chine'nsis (Chinese). See R. CORDIFOLIA. 

 cordifo'lia (heart-leaved). J. White. July. Siberia. 



1783. 

 peregri'na (alien). 1-2. Yellow. July. Europe 



(England). " Wild Madder." 

 sikkime'nsis (Sikkim). Himalaya. 

 tincto'rum (dyer's). 4. Yellow. July. S. Europe. 



1596. " Dyer's Madder." 



RU'BUS. Bramble. (From the Celtic rub, red ; colour 

 of the fruit of some of the species. Nat. ord. Roseworts 

 [Rosaceae]. Linn. iz-Icosandria, $-Polygynia.) 



Generally by suckers ; frequently by cuttings ; also 

 by seeds for species, and obtaining new varieties ; also 

 easily obtained by pegging down the points of the shoots 

 in the soil ; deep, rich, loamy soil. 



GREENHOUSE EVERGREENS. 



R. ape'talus (petalless). 6. Purple. July. Isle of 



France. 1823. Stove. 



,, austra'lis (southern). 3-6. White or pink. June. 

 New Zealand. " Tataramoa." Nearly hardy on a 

 wall. 



elli'pticus (diamond-shaped). 10. White. India. 

 1827. 



