POR 



[658] 



POR 



P. Canade 1 'mis (Canadian). March. Canada. 



ca'ndicans (v/hhish-heart'leaved). 50, March. 



N. Amer. 1772. 



cane'scens (hoary). 40. March. England. 

 acci-ifo'lia (maple-leaved). 



JEgypti'ncn (Egyptian). Egypt. 



Arembe'rgica (Aremberg). 1835. 



Be'tgicd (Belgian). South Europe. 1835. 



hv'brida (hybrid). 40. April. Caucasus. 



1816. 



ni'nea (snow-white). 



pe'ndula (drooping- branched), 



fastigia'ta (pyramidal. Lombardy). 70. March. 



Italy. 1758. 

 fae'm ina (female). March. Italy. 1838. 



Gras>ca (Greek. Athenian). 40. March. Archi- 



pelago. 1779. 



grandidenta'ta (large-toothed). 70. March. 



N. Amer. 1772. 



pe'ndula (drooping). 40. March. N. 



Amer. 1820. 



heterophy'lla (various-leaved). 70. March. 



N. Amer. 1765. 



laurifo'lia (laurel-leaved). April. 



longifo'tia (long-leaved). April. America. 1843. 



monili'fera (necklace-bearing). 70. May. 



Canada. 1772. 

 Lindleyn.'nu (Lindley's waved-leaved). 



April. Canada. 1/72. 

 variega'ta (variegated-Jeawerf). May. 



ni'gra (black). 30. March. Britain. 

 salidfo'lia (willow-leaved). April. Floet- 



becic. 1834. 



vi'ridin (green -leaved). April. Britain. 



pseu'do .bnlsami'fera (bastard-balsamic). April. 



America. 1843. 



tre'mulu (tremblinsr.^s^en). 50.March. Britain. 

 l&rigu'ta (smooth). 80. March. N.Amer. 



1/60. 



pe'ndula (drooping). April. 



supi'na (lying-down). March. N.Amer. 



1824. 



tre'pida (trembling. American}. 30. N. Amer. 



1812. 



tri'stis (sad). April. N.Amer. 1843. 



PORA'NA. (From poreno, to travel ; the 

 twining stems extending far and wide. 

 Nat. ord., Bindweeds [Convolvulacesej. 

 Linn., 5-Pentandria,I-Monogynia. Allied 

 to Convolvulus.) 



Stove evergreen, East Indian, white-flowered 

 twiners. Seeds in a hotbed, and side, stubby, 

 short shoots in sandy soil, under a bell-glass, in 

 heat ; peat and loam. Winter temp., 50 to 55; 

 summer, 60 to 65. 

 P. pan'icnla'ta (panicled). October. 1823. 



volu'tiilis (twining). 50. July. 1820. 



PORANTHE'RA. (From poros, a pore, or 

 opening, and anthera, an anther, or pol- 

 len-bag ; anthers opening by pores. Nat. 

 ord., Spurgeworts [Euphorbiaceae]. Linn., 

 5-Pentandria 3-Trigyniu.) 



Greenhouse evergreen. Cuttings of firm side- 

 shoots in sand." under a bell-glass, set in a close 

 frame, and shaded in May ; peat and sandy loam. 

 Winter temp., 40 to 48. 



P. ericifo'lia (heath-leaved), l. White. July. 

 N. Holland. 1824. 



PORLIE'RA. (Named after P. A. Porlier, 

 a Spaniard, Nat. ord., Beancapers [Zy- 



gophyllacesB]. Linn., 8-Oclandrid 1- 

 Monogynia. Allied to Melianthus.) 



Stove evergreen shrub, with leaves which close 

 Defore rain ; hence called hygrome'trica. Cut- 

 :ings 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 porpctx, a button; 

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

 chids [Orchidacesej. Linn., 2Q-Gynan- 

 dria 1-Monandria. Allied to Ixia.) 



Stove orchid. Divisions in spring, in pots. See 

 ORCHIDS. 

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



PORPHYRO'COMA. (From porphyra,-pnx- 

 ple, and Icoma, a head; flower-heads 

 purple. Nat. ord., Acanthads [Acantha- 

 ceffi]. Linn., Ik-Didynamia 2-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 (spear-head-teared). 1. Violet. 

 April. 1845. 



PORTLA'NDIA. (Named afterthe Duchess 

 of Portland. Nat. ord., Cinchonads [Cin- 

 chonacese]. Linn., b-Pentandria l-Mono- 

 gynia. Allied to Eondeletia.) 



Stove evergreen shrubs, from Jamaica. Cuttings 

 of rather firm shoots in sand, under a bell-glass, 

 and in a brisk, sweet bottom-heat; sandy loam, 

 peat, and a little leaf-mould. Winter temp., 45 

 to 6l> ; summer, 60 to Q0. 

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



grandiflo'ra (large-flowered). 12. White. 1775. 



PORTUGAL LAUREL. Ce'rasusLusita'nica. 



PORTULA'CA. Purslane. (From porto, 

 to carry, and /ac, milk; milky juice. Nat. 

 ord., Purslanes [Portulacese]. Linn., 11- 

 Dodecandria I-Monogynia. Allied to 

 Tali num.) 



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 open air ; 

 tuberous and shrubby greenhouse kinds, by cut- 

 tings and division of the roots ; rich, sandy loam 

 and peat, the loam being enriched with old leaf- 

 mould or cow-dung. 



GREENHOUSE TUBEROUS EVERGREENS. 

 P. Gillie'sii (Gillies'). . 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. 183Q. Herbaceous perennial. 



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



South Europe. 1839. 



lu 1 tea (yellow). 1. Yellow. June. 1847. 



__ _ sple'ndens (shining). 1, Reddish-purple. 



June. 



