ORONTIUM 



621 



OSMANTHUS 



O. tubero'sus (tuberous). See LATHYRUS MONTANUS. 

 variega'tus (variegated). See LATHYRUS VARIEGATUS. 

 va'rius (various). See LATHYRUS PANNONICUS. 

 vene'tus (Venetian). See LATHYRUS VENETUS. 

 ,, veno'sus (veiny). See LATHYRUS VENOSUS. 

 ve'rnus (spring). See LATHYRUS VERNUS. 

 ca'rneus (flesh-coloured). See LATHYRUS VERNUS 



CARNEUS. 



vicioi'des (vetch-like). See VICIA OROBOIDES. 



ORO'NTTUM. (An old Greek name for a plant that 

 grew on the banks of the Orontes. Nat. ord. 

 Araceas.) 



Perennial, aquatic or bog plant. Divisions. Good 

 loamy soil and leaf-mould. 

 O. aqua'ticum (aquatic). Spathe pale green; spadix 



yellow. May, June. N. Amer. " Golden Club." 

 japo'nicum (Japanese). See ROHDEA JAPONICA. 



OROTHA'MNUS ZE'YHERI. See MIMETES ZEYHERI. 



ORO'XYLTJM. (From oros, a mountain, and xulon, 

 wood. Nat. ord. Bignoniaceas.) 



Stove and greenhouse trees with handsome foliage and 

 flowers. Seeds ; cuttings in sand in a close case, with 

 bottom-heat for 0. i'ndicum. Fibrous loam, leaf-mould, 

 and sand. 

 0. fla'vum (yellow). 20-50. Yellow, in panicles. China. 



i'ndicum (Indian). 40. White, purple. Trop. Asia. 



1775- 



ORPHANIDE'SIA. (A commemorative name, Orphan- 

 ides. Nat. ord. Ericaceae. Allied to Epigaea.) 



A dwarf, prostrate leafy, hardy shrub. Layers. Loam 

 and peat. 

 0. gaultherioi'des (Gaultheria-like). White. Asia Minor. 



1891. 



O'RPHIUM. (From Orpheus, of Greek mythology. 

 Nat. ord. Gentianaceag.) 



A dwarf, evergreen greenhouse shrub. Cuttings in 

 sand, under a bell-glass, with gentle heat. Loam, peat, 

 and sand. 

 0. frute'scens (shrubby). 1-2. Red. S. Africa. 1756. 



ORTGIE'SIA. (Ortgies, a commemorative name. Nat. 

 ord. Bromeliaceas.) 



Stove herbs, with stiff, or rigid leaves in vasiform tufts. 

 Seeds ; suckers. Fibrous loam, peat, both turfy, some 

 nodules of charcoal, and sand. 

 0. legrellia'na (Legrellian). . Red, purple. S. Amer. 



1865. 



tillandsioi'des (Tillandsia-like). |. Red. Brazil and 

 Uruguay. 1860. 



ORTHOCA'RPUS. (From orthos, straight, and karpos, 

 a fruit. Nat. ord. Scrophulariacea?.) 



Half-hardy annuals. Seeds. Sow in a frame in light 

 soil and plant out in May. 



0. eria'nthus (woolly), i. Cream. June. N. Amer. 

 ro'seus (rosy), i. Purple. 



purpura' scens (purple). J. Bracts, calyx and corolla 

 purple. California. 



ORTHO'CERAS. (From orthos, straight, and keras, a 

 horn. Nat. ord. Orchidaceae.) 



Greenhouse terrestrial orchid. Fibrous loam, peat, 

 and sand. 



0. Sola'ndri (Solander's). See O. STRICTUM. 

 ,, stri'ctum (upright). 1-2. Greenish-yellow. Australia 

 and New Zealand. 



ORTHOCHTLUS. See EULOPHIA. 



ORTHOPO'GON HIRTE'LLUS and 0. LOLIA'CEUS. 



See OPLISMENUS COMPOSITUS. 



ORTHO'SIPHON. (From orthos, straight, and siphon, 

 a tube ; referring to the tube of the flower. Nat. ord. 

 Labiates [Labiatae]. Linn. i^-Didynamia, i-Gymno- 

 spermia. Allied to Ocimum.) 



Division of herbaceous, or cuttings of the young shoots, 

 when growth is commencing ; cuttings of half-ripened 

 shoots of the evergreens ; sandy loam and fibrous peat ; 

 common stove and greenhouse treatment. 

 O. a'sperus (rough). See COLEUS BARBATUS. 

 incu'rvus (bent-in). i. Pale scarlet. May. Hima- 

 laya. 1839. Stove evergreen. 



0. rubicu'ndus (ruddy). Purple. June. India and 

 Burma. 1826. Greenhouse evergreen. 



ii ii virga'tus (twiggy). Blue. June. India. 1826. 

 Greenhouse evergreen. 



stami'neus (long-stamened). 2. Lilac. July. E. Ind.; 

 Malaya. 1869. 



ORTHOSTE'MMA. See PENTAS. 



ORTHOTffi'NIA TDRIONA'NA. See RETINIA TURIO- 



NANA. 



ORTHROSA'NTHTJS. (From orthros, morning, and 

 anthos, a flower ; flowers expand early in the day. Nat. 

 ord. Irids [Iridaceae]. Linn. i6-Monadelphia, $-Trian- 

 dria. Allied to Sisyrinchium.) 



Greenhouse herbaceous perennials. Seeds, and division 

 of the plant in spring ; sandy loam and leaf-mould ; a 

 cold pit in winter, to exclude the frost. 

 0. chimborace'nsis (Ckuxaborazo) . i-ij. Peruvian Andes. 



1876. 



multiflo'rus (many-flowered). i. Blue. June. 

 Australia. 1820. 



ORVA'LA LAMIOI'DES. See LAMIUM ORVALA. 



ORY'ZA. Rice. (From the Arabic ar-roz, and Greek 

 oruza. Nat. ord. Gramineae.) 



Stove grass from swampy parts of Tropical Asia. 

 Seeds. Fibrous loam, leaf-mould, and sand. It thrives 

 best if the base of the pot dips into a tank of warm water. 

 It is extensively cultivated in warm countries for the 

 grain, which is often the principal food of the natives. 

 0. sati'va (cultivated). 2-3. Green. September. Trop 

 Asia. 



OSAGE APPLE. Maclu'ra. 



OS AGE ORANGE. See MACLURA AURAKTIACA. 



OSBE CKIA. (Named after P. Osbeck, a Swedish 

 naturalist. Nat. ord. Melastomads [Melastomaceae]. 

 Linn. 8-Octandria, i-Monogynia. Allied to Melastoma.) 



Cuttings of side, firm, stubby shoots in sand, under a 

 bell-glass, and in bottom-heat ; sandy loam, fibrous peat, 

 a little dried cow-dung, and charcoal. Winter temp., 

 48 to 58 ; summer, 60 to 85. 



STOVE DECIDUOUS SHRUBS. 



0. cane' scens (hoary). See DISSOTIS INCANA. 



,, glomera'ta (crowded). See PTEROLEPIS GLOMERATA. 



nepale'nsis (Nepaulese). ij. Purple. June. Hima- 

 laya ; Burma. 1821. 



albiflo'ra (Nepaul- white-flowered), ij. White. 

 August. Nepaul. 1829. 



STOVE EVERGREENS. 



0. angustifo'lia (narrow- leaved). See O. CHINENSIS. 

 a'spera (rough). 2. Purple. July. India. 

 chine'nsis (Chinese). 2. Purple. July. China. 1818. 

 ,, cupula'ris (cup-shaped). 2. Red. India. 

 erythroce'phala (red-headed). See O. CUPULARIS. 

 glomera'ta. albiflo'ra (crowded- white-flowered). See 



PTEROLEPIS GLOMERATA ALBIFLORA. 

 octo'ndra(eight-stamened). i. Rose. April. Ceylon. 



1815. 

 parvifo'lia (small-leaved). 1-2. Rose. July, August. 



Ceylon. 

 rostra'ia (beaked). 2-3. Pink or mauve-purple. 



May. Himalaya. 1825. 



rubicu'nda (red). 3. Purple. Ceylon. 1865. 

 stella'ta (starred), i. Pink v July. Nepaul. 1820. 

 ternifo'lia (three-leafleted). See O. ROSTRATA. 

 umlaasia'na (Umlaasian). See DISSOTIS INCANA. 

 wightia'na (Wightian). 2. Purple. E. Ind. 1863. 

 zeyla'nica (Ceylon). 2. Yellow. August. Ceylon. 



1799. 



Any species of Willow, used in basket-making, 

 Salix viminalis being the common osier. 



OSMA'NTHUS. (From osme, smell, and anthos, a 

 flower ; the flowers being fragrant, particularly those of 

 0. fragrans. Nat. ord. Oleaceae.) 



Hardy, evergreen shrubs. Layers in July. Ordinary 

 soil. 



0. america'nus (American). 4-6. White. June. N. 

 Amer. 1758. 



