POR 



[ 737 ] 



POT 



Greenhouse evergreen. Cuttings of firm side- 

 shoots, in sand, under a bell-glass, set in a 

 close frame, and shaded in May; peaf and 

 sandy loam. Winter temp., 40 to 48. 

 P. ericifo'lia (Heath-leaved). 1. White. July. 

 New Holland. 1824. 



PORLIE'RA. (Named after P. A. 

 Porlicr, a Spaniard. - Nat. ord., Bean- 

 capers [Zygophyllacese]. Linn., S-Oc- 

 tandrla \-Monoyynia. Allied to Melian- 

 thus.) 



Stove evergreen shrub, with leaves which 

 close before rain; hence called hygrometrica. 

 Cuttings of firm shoots, in spring, in sand, 

 under a bell-glass, and in a brisk bottom-heat. 

 Winter temp., 50 to 55 ; Summer, 60 to 80. 

 P. hygrome'trica (hygrometric). 6. Peru. 1820. 



PO'RPAX. (From porpax, a button; 

 shape of pseudo-bulbs. Nat. ord., Or- 

 chids [Orchidaceso]. Linn., 20-Gynan- 

 dria 1-Monandria. Allied to Ixias.) 



Stove orchid. Divisions, in spring, in pots. 

 See Orchids. 

 P. reticula'ta (netted). Purple, red. E.Indies. 



PORPHYRO'COMA. (From porphyra, 

 purple, and koma, a head ; flower-heads 

 purple. Nat. ord., Acanthads [Acan- 

 thacese]. Linn., 14-Didynomia %-Angio- 

 spermia. Allied to Aphelandra.) 



Stove evergreen shrub. Cuttings of young 

 shoots, in sandy soil, in a hotbed; peat and 

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

 to 85. 



P. lanceola'ta(spe&r-hea.di-leaved'). 1, Violet. 

 April. 1845, 



POETLA'NDIA. (Named after the 

 Duchess of Portland. Nat. ord., Cin- 

 chonads [Cinchonaceee]. Linn.,5-Pew- 

 tandria 1-Monogynia. Allied to Ron- 

 deletia.) 



Stove evergreen shrubs, from Jamaica, Cut- 

 tings of rather firm shoots, in sand, under a 

 bell-glass, and in a brisk sv.-eet bottom-heat ; 

 sandy loam, peat, and a little leaf-mould. 

 Winter temp., 45 to 60; summer, 60 to 90. 

 P. cocci'nea (scarlet). 5. Scarlet. 1812. 

 grandiflo'ra (large-flowered), 12. White. 

 1775. 



PORTUGAL LAUREL. Ce'rasw lusi- 

 la'nica. 



PORTULA'CA. Purslane. (Fromporto, 

 to cany, and lac, milk; milky juice. 

 Nat. ord., Purslanes [ Portulacese ] . 

 Linn., \\-Dodecandrla 1 Monogynia. 

 Allied to Talinum.) 



Hardy annuals, by seeds, in the open border, 

 at the end of April ; tender annuals, by seed, in 

 hotbed, in spring, and afterwards flowering 

 them in the greenhouse, as they require a very 

 sheltered sunny spot to do much good in the 

 47 



open air; tuberous and sJmiMif greenhouse 

 kinds, by cuttings, and division of the roots ; 

 rich sandy loam and peat, the loam being en- 

 riched with old leaf-mould, or cow-dung. 



GREENHOUSE TUBEROUS EVERGREENS. 

 P. Gittte'flu(Gilliei's). 4- Red, pink. Mendoza. 



1827 



grandiflo'ra (large-flowered). Yellow, purple. 



June. Chili. 1827. 



Peruvia'na (Peruvian). 2. Purple. May. 



Peru. 1820. Stove herbaceous. 



sple'ndens (shining). Crimson, purple. May. 



Chili. 1839. Herbaceous perennial. 



Thelluso'nii (Thelluson's). 1. Scarlet. July. 



South Europe. 1839. 



lu'tea (yellow). 1, Yellow. June. 



1847. 



sple'ndens (shining). 1. Kedish 



purple. June. 



GREENHOUSE ANNUALS. 

 P. fialimoi'des (Halimus - like). 4- Yellow. 

 June. Jamaica. 1823. 



meridia'na (noonday). $. Yellow. May. 



East Indies. 1791. 



parvifo'lia (small-leaved). 4- Yellow. June. 



Jamaica. 1799. 



pilo'sa (shaggy). 4- Pink. June. South 



America. 1690. 



pwsi'Wo (weak). *. Yellow. June. Trinidad. 



1824. 



quadri'fida (four-cleft). J. Yellow. August. 



East Indies. 1773. 



HARDY ANNUALS. 

 Pfolia'sa (leafy). 4- Yellow. June, Guinea, 



1822 



grandiflo'ra lu'tea (large-yellow-flowered). 



Yellow. June. Chili. 1827. 



Guine'nsis (Guinea). 4- Yellow. June. 



Guinea. 1823. 



involucra'ta (involucrated). 4. Pink. June. 



1820. 



mucrona'ta (sharp-pointed). 4- Yellow, 



June. 1822. 



olera'cea (eatable). 2- Yellow. July. Europe. 



1582. 



sati'va (cultivated). 14. Yellow. August. 



South America. 1652. 



au'rea (golden). 1. Yellow. August. 



South America. 1652. 

 POSOQUE'RIA. (Posoqueri, the Gui- 

 anan name of longiflora. Nat ord., 

 Cinchonads [Cinchonacese]. Linn., 5- 

 Pentandria l-Monoyynia. Allied to 

 Gardenia.) 



Stove, white-flowered, evergreen shrubs. Cut 

 tings of young shoots, in sand, under a bell- 

 glass, and in heat, in April or May; sandy 

 loam, leaf-mould, and a little peat. Winter 

 temp., 48 to 60 ; summer, 60 to 85. 

 P. gra'cilis (slender). 5. Guiana. 1825. 

 1 latifo'lia (broad-leaved). 5. September. 



Guiana. 1826. 



! longiflo'ra (long-flowered). 5. Guiana. 1822. 

 I verai'color (changeable - coloured) . Pinky 



white. September. Cuba. 1839. 

 POTATO. Sola'num tubero'sum^ 

 3fi 



