POURRETIA 



704 



PRIESTLEYA 



POURRE'TIA. (Commemorative of P. A. Pourret, a 

 French botanist. Nat. ord. Bromeliaceae. Now re- 

 ferred to Puya.) 

 P Achupa'lla (Achupalla). See PUVA BONPLANDIANA. 



coarcta'ia (contracted). See PUYA CHILENSIS. 



fri'gida (cold). See DYCKIA FRIGID A. 



Joinvi'llei (Joinville's). See RHODOSTACHYS ANDINA. 



mexica'na (Mexican). See RHODOSTACHYS ANDINA. 



POUTE'RIA. (A commemorative name. Nat. ord. 

 Sapotaceae.) 



A greenhouse evergreen tree. Cuttings of mature 

 wood in sand, in gentle heat, and under a hand-light. 

 Fibrous loam, peat, and sand. 



P. sua'vis (sweet-scented). Green. Fruit pear-shaped, 

 with edible, perfumed rind. Uruguay. 1906. 



PRAIRIE CLOVER. Petaloste'mon. 

 PRASOPHY'LLUM. (From prason, a leek, and 

 phullon, a leaf ; in allusion to the resemblance of the 

 leaves to those of a leek. Nat. ord. Orchidaceae.) 



Terrestrial orchids requiring greenhouse protection. 

 Imported roots. Fibrous peat, loam, and sand. 

 P. aitenua'tum (attenuated). Australia. 1882. 

 laufferia'num (Laufferian). i. Dusky green. Aus- 

 tralia. 1888. 



plunuzfo'rme (plume-formed). Australia. 1882. 

 ,, triangula're (triangular). Australia. 1882. 



PRA'TIA. (Named after M. Prat, a French officer. 

 Nat. ord. Campanulads [Campanulaceae]. Linn. $-Pen~ 

 tandria, i-Monogynia.) 



Greenhouse or hardy herabceous perennials. Seeds in a 

 slight hotbed, in spring ; dividing the plants ; cuttings 

 of the young shoots in sandy soil, any time, but best in 

 autumn and spring ; sandy loam, and a little peat or 

 leaf-mould ; require a greenhouse or cold pit in winter. 

 P. angula'ta (angled). A. White. May to July. New 



Zealand. 1829. Hardy, creeping. 

 areno'sa (sand) &. White. July to September. 



New Zealand. 

 ,, begonifo'lia (Begonia- leaved). J. Blue. June to 



September. Himalaya. 1827. Half-hardy. 

 corymbo'sa (corymbed). See LOBELIA CORYMBOSA. 

 ere'cta (upright), r. Blue. June. Australia. 1819. 

 hedera'cea (Ivy-like). J. White. September. Brazil. 1832. 

 ,, ma'crodon (large-toothed). J. White. July, August. 



New Zealand. Half-hardy. 

 monta'na (mountain). Java. 

 physaloi'des (Physalis-like). Bot. Mag., t. 6864. 

 re'pens (creeping). J. White, violet. June to 

 October. Magellan regions. 



PRE'MNA. (From premnon, a stock or trunk of a 

 tree ; in allusion to the habit of the plants. Nat. ord. 

 Verbenaceae.) 



Stove trees or shrubs. Seeds ; cuttings in sand, in a 

 close case, with bottom-heat. Fibrous loam, peat, and 

 sand. 

 P. escule'nta (esculent). 6-8. Yellow-white. May. India. 



1824. 



integrifo'lia (entire- leaved). 6-10. Greenish- white. 



July. India; Malaya. 1827. " Headache Tree." 



latifo'lia (broad-leaved). 10-15. White. June. 



India. 1827. 



serratifo'lia (saw-leaved). See P. INTEGRIFOLIA. 

 ,, spino'sa (spiny). See P. INTEGRIFOLIA. 



PRENA'NTHES. (From prenes, bending downwards, 

 and anthos, a flower ; the flower- heads are drooping. 

 Nat. ord. Compositae.) 



Hardy herbs. Seeds ; divisions. Ordinary soil. 

 P. a'lba (white). 2-4. White. August to October. 



N. Amer. 1762. 



,, arbo'rea (tree-like). See SONCHUS ARBOREUS. 

 ,, pinna' ta (pinnate). See SONCHUS LEPTOCEPHALUS. 

 purpii'rea (purple). 1^-3. Purple. July, August. 



Europe. 1658. 



tenuifo'lia (slender-leaved). See P. PURPUREA. 

 virga'ta (twiggy). 2-3. Lilac. July, August. N. 

 Amer. 1823. 



PREPTA'NTHE. See CALANTHE. 



PREPU'SA. (From prepousa, comely ; the beauty of 

 the flowers. Nat. ord. Gentianworts [Gentianacea?]. 

 Linn. 5-Penfandria, i-Monogynia. Allied to Leiauthus.) 



Stove herbaceous perennials. Seeds in a hotbed, in 

 spring ; division of the plant at the same time. Winter 

 temp., 48 to 55 ; summer, 60 to 80. 

 P. hookeria'na (Hooker's), i. White, crimson. March. 

 Brazil. 1839. 



PRESCO'TTIA. (Commemorative of John Prcwtt, 

 a Russian botanist. Nat. ord. Orchidaceae. Allied to 

 1'onthieva.) 



Terrestrial stove orchids. Imported roots. Fibrous 

 loam, fibrous peat, leaf-mould, and sand. 

 P. colo'rans (colouring). See P. STACHYODES. 

 densiflo'ra (dense-flowered). J. White. Brazil. 1866. 

 ,, plantagi'nea (plantain-like). See P. PLANTAGINIFOLIA. 

 ,, plantaginifo' lia (plantain-leaved). Greenish-white. 



Brazil. 1822. 



stachyo'des (spike-like). iJ-2. Green. W. Ind. ; 

 Brazil. 1834. 



PRE'SLIA. (Commemorative of C. B. and /. S. Presl, 

 Belgian botanists. Nat. ord. Labiatae. Allied to 

 Mentha, and in habit like M. Pulcgium.) 



Hardy perennial, prostrate herb. Seeds ; divisions in 

 spring. Ordinary soil. 



P. cmtt'rtfl(deer). J. Pale purple. June, July. Western 

 Mediterranean region. 1684. 



PRESTINA'RIA. See COREOPSIS. 



PRESTO EA. (Commemorative of H. Prcstoe, a director 

 of the Botanic Gardens, Trinidad. Nat. ord. Palmaceae.) 

 Stove Palms. Seeds. Loam, one-third peat, and sand. 

 P. Carde'ri (Carder's). Colombia. 1876. 

 monta'na (mountain). 30. Trop. Amer. 1820. 

 pubi'gera (down-bearing). 6-12. Trinidad. 



PRESTO NIA. (Named after C. Preston, M.D. Nat. 

 ord. Dogbanes [Apocynaceae]. Linn. s-Pentandria, i- 

 Monogynia. Allied to Malouetia.) 



Stove evergreen, white-flowered twiners. Cuttings of 

 half-ripened, stubby side-shoots in sand, under a bell- 

 glass, in heat ; sandy loam, and a little fibrous peat or 

 dried leaf-mould. Winter temp., 48 to 58 ; summer, 

 60 to 85. 



P. glabra'ta (smoothed). 8. July. Ecuador. 1823. 

 hirsu'ta (hairy). 5-10. Yellow, rose. August, 



September. Brazil. 1843. 

 ,, tomento'sa (downy). 8. July. Brazil. 1820. 

 ,, veno'sa( veiny). Yellow-green. June. W. Ind. 1821. 



PRICKING-OUT is transplanting seedlings from their 

 seed-bed more thinly that they may acquire more fibrous 

 roots and strength previously to their being finally 

 planted out. 



PRICKLY CEDAR. Cyatho'des acero'sa. 

 PRICKLY PEAR. Opu'ntia. 



PRICKWOOD, or TIMBER. 



and Co'rnus sangui'nea. 



Euo'nymus europa'us 



PRIE'STLEYA. (Named after Dr. Priestley. Nat. 

 ord. Leguminous Plants [Leguminosa?]. Linn. ij-Dia- 

 delphia, ^-Decandria. Allied to Liparia.) 



Greenhouse, yellow-flowered, evergreen shrubs, from 

 South Africa, all about 3 feet high. Cuttings of half- 

 ripened short shoots in sand, under a bell-glass ; sandy 

 loam and fibrous peat, and thoroughly well-drained, to 

 assist which charcoal and pieces of broken brick or sand- 

 stone may be mixed with the compost. Winter temp., 

 40 to 48. Such species as vesti'ta should be tried 

 against a wall. 

 P. axilla' ris (axillary-flowered). See AMPHITHALEA DENSA. 



capita' ta (headed-flowered). July. 1812. 



,, elli'ptica (oval-leaved). 1825. 



ericcefo'lia (heath-leaved). See AMPHITHALEA ERICE- 

 FOLIA. 



graminifo'lia (grass-leaved). June. 1800. 



hirsu'ta (hairy-stemmed). August. 1792. 



Iczviga'ta (smooth-leaved). See P. TEROES. 



myrtifo'lia (myrtle-leaved). June. 1823. 



seri'cea (silky-leaved). June. 1794. 



,, te'res (round-stemmed). June. 1816. 



tomento'sa (downy). July. 1812. 



,, umbelli'fera (umbelliferous). July. 1826. 



vesti'ta (clothed). May. 1800. 



villa' sa (woolly). June. 1774. 



