CENO 



[ 574] 



OLD 



HARDY HERBACEOUS. 



(E.anifsa'loba (unequal - lobed). 3. White. 

 June.- Chilue. 1828. 



ctespito'aa (tutted). 1. White. June. N. 



Amer. 1811. 



Frase'ri( Eraser's). 1$. Yellow. June. N. 



Amer. 1811. 



variega'ta (variegated-Jeaoed). I. Yel- 

 low. July. Gardens. 



frutiettm (shrubby). 3. Yellow. August. 

 N. Amer. 1737. 



ambi'gua (doubtful). 1. Yellow. July. 



N. Amer. 1813. 



I'ndica (Indian). 1$. Yellow. July. 



India. 



glau'ca (milky-green). 3. Yellow. June. 



N. Auier. 1812. 



variega'ta (\KriegAteA-leaved). 2. Yellow. 



July. 



gra'cilis (slender). 1. Yellow. 1833. 



hy>tirida (hybrid). 1. Yellow. July. N. 



Amer. 1813. 



maorocu'rpa (large - fruited). 1. Yellow. 



June. N.Amer. 1811. 



Missourie'nsis (Missouri). 1. Yellow. June. 



N. Amer. 1818. 



mrvo'sa (large-nerved). 2. Yellow. July. 1S27. 



Nutta'llii (Nuttall's). White. June. N.Amer. 



1811. 



p&'llida (pale). l. White, red. June. 



America. 1826. 



pvfmila (dwarf). . Yellow. July. N.Amer. 



1757. 



pustlla (small), i- Yellow. July. N.Amer. 



1817. 



Sfillo'wii (Sellow's). Montevideo. 1831. 



ssr^uia'ta (small-toothed). 1. Yellow. June. 



. N. Amer. 1824. 



serrtina (lite-flowering). 1J. Yellow. Sep. 



tember. N. Amer. 1820. 



specWsa (*howy). 1. White. June. N. 



Amer. 1821. 



'ma'jor (larger). 6. White. July. N. 



Amer. 



taraxacifo'Ha (dandelion-leaved). . White. 



June. Peru. 1825. 



tetrago'na (four-angled-/>odded). l. Yellow. 



July. N. Amer. 1820. 



HARDY BIENNIALS. 



(E. a'lbicnns (whitish). 2. Whitish. June. Peru. 

 1823. 



atbicau'lis (white-stalked). . White. June. 



N.Amer. 1811. 



bie'nnis (biennial). 4. Yellow. July. N.Araer. 



1629. 



bi'frons (two-faced). 1$. Purple. August. 



Texas. 1835. 



crucia'ta (cross-lowered). 3. Yellow. July. 

 N. Amer. 1824. 



ero'sa (jagged). 2. Citron-coloured. July. 



Cape of Good Hope. 1 828. 



globula'ris (globular). 3. Yellow. July. 1824.! 



inca'na (hoary). 2. Yellow. July. N.Amer.! 



1820. 



longiflo'ra (long-flowered). 3. Yellow. August. 



Buenos Ayres. 17/6. 



me'dia (iatermediate). 2. Yellow. July. N. 



Amer. 1823. 



noctu'rna (night-smelling), 2. Yellow. July. 

 Cape of Good Hope. 1790. 



odora'ta (sweet-scented). 2. Yellow. June. 



S. Amer. 1790. 



pubefscens (downy). 1. White. July. S.Amer. 



182&. 



CB. sallcifo'lia (willow-leaved). 2. Yellow. July. 



1824. 



Simsia'na (Sims's). 3. Yellow. July. Mexico. 



1816. 



stria'tn (streaked). Yellow. July. 1822. 



villo'na (shaggy). 2. Yellow. July. Cape of 



Good Hope. 1791. 



HARDY ANNUALS. 



(E. amce'na (pleasing). 1. Purple. July. N.Amer. 

 1825. 



clava'ta (club-/eat>ed). 1. White. July. Mexico. 



1827. 



decu'mbens (lying-down). 1. Purple. August. 



California. 1827. 



densiflo'ra (close-flowered). 3. Purple. August. 



California. 1830. 



Lindle'yii (Lindley's). lj. Purple. August. 



N. Amer. 1826. 



linea'ris (narrow-leaned). 1^. Yellow. June. 



N. Amer. 1822. 



Pu'rshii (Pursh's). White. July. N.Amer. 1811. 



quudrwu' Ineru (four-wounded). l- Pink. Sep- 



tember. N. Amer. 1826. 



sinua'ta (scolloped-/eawtd). 3. Yellow. July. 



N. Amer. 1770. 



mi'nima (smallest). . Yellow. July. N. 



Amer. 1825. 



stri'cta (erect). 1$. Yellow. June. 1822. 



tenuifo'lia (thin-leaved). l. Purple. August. 



Chili. 1828. 



tri'loba (three-lobed). ^. Yellow. June. N. 



Amer. 1822. 



vimi'nea (twiggy). 2. Purple. July. California. 



1826. 



virga'ta (rod-shaped). l. Purple, white. July, 



Peru. 1823. 



OFFSETS are- side bulbs produced by 

 some bulbous roots, and by which the 

 species can be propagated. Whatever 

 checks the upward growth of the parent 

 plant, as an early breaking down of the 

 stem, compels the sap. to find other 

 organs for its reception, and, conse- 

 quently, promotes the production of off- 

 sets. " The practice," says Dr. Lindley, 

 "of scarring the centre of bulbs, the 

 heads of echino-cacti, and such plants, 

 and the crown of the stem of species like 

 Littte'a yeminiflo'ra, in all which cases 

 suckers are the result, is explicable on 

 the foregoing principle." 



OGECHEE LIME. Ny'ssa ca'ndicans. 



OIL NUT. Hamilto'nia. 



OIL PALM. Ela'is. 



O'LAX. (From olax, furrowed ; flowers 

 partially furrowed, or imbricated. Nat. 

 ord., Oliveworts [Oleacea?]. Linn., 3- 

 Triandria I-Monoyynia.) 



Stove, white-flowered, evergreen climbers, from 

 the East Indies. Cuttings of ripened shoots in 

 sand, under a bell-glass, in heat; sandy peat, 

 fibry loam, and a little dried leaf-mould. Winter 

 temp., 50 to 55; summer, 60 to 80. 

 0. imbrica'ta (imbricated). 8. December. 1820. 



sea' ndens (climbing). 8. December. 1820. 



OLDENLA'NDIA. (Named after H. B. 

 Oldenland, a Danish plant-collector. Nat. 



