PLOCAMA 



683 



PLUMBAGO 



P. Raymo'ndi (Raymond's). Purple. Venezuela. 1863. 

 restrepioi' des (Restrepia-like). Purple, green. Peru. 



1836. 

 rhombipeftala (diamond- petaled). Green and purple. 



British Guiana. 1893. 



R(B'zlii(Rcsz\'s). . Purple-brown. Colombia. 1888. 

 ro' seo-puncta' ta (rosy-dotted). White, rose. August 



Venezuela. 

 rotundifo'lia (round-leaved). J*. Yellow and purple. 



Jamaica. 1895. 



ru'bens (reddening). Reddish. June. Brazil. 

 ru'fa (reddish), i. Brown-red ; lip purple. Mexico. 



1898. 



ruscifo'lia (Ruscus-leaved). Trop. Amer. 1798. 

 saundersia'na (Saundersian). Pale brown. Brazil. 



1866. 

 sauroce'phala(Saurus- headed). Yellow-green. Brazil. 



1829. 



Sca'pha (skiff). White, brownish-purple. July. 1834. 

 Scla'rea (Sclarea). Red, orange. Colombia. 1876. 

 semipellu'cida (half-pellucid). April. Venezuela. 

 seria'ta (rowed). Yellow, green. May. Brazil. 1842. 

 sertularioi' des (Sertularia-like). White. Jamaica. 

 sica'ria (dagger-shaped). Green, yellow. May. 



Trop. Amer. 1841. 

 smithia'na (Smith's). Green, purple. May. Rio 



Janeiro. 1842. 



spectrili'nguis (spectre-lipped). ^. Straw, purple- 

 mauve ; lip olive-brown. 1883. 

 stenope' tola (narrow-petaled). Brown, yellow. July. 



Trop. Amer. 1837. 

 strupifo'lia (strap-leaved). Purple, white. Year. 



Brazil. 1837. 

 subulifo'lia (awl-leaved). |. Yellow, with purple 



lines. Brazil. 1908. 

 tenui' ssima (most-slender). Mexico. 

 te'res (round-stemmed). Cinnamon. August. Brazil. 



1842. 

 teretifo'lia (round-leaved). J. Brown, fleshy. Brazil. 



1892. 

 testcifo'lia (brick- leaved), i. W. Ind. ; Venezuela. 



1881. 

 tigri'na (tiger-spotted). Yellow, purple. August. 



Mexico. 1838. 

 tribuloi'des (caltrop-like). *. Brick-red. W. Ind. 



1887. 



tricarina'la (three-keeled). Orange. Peru. 

 tridenta'ta (three- toothed). Venezuela. 1840. 

 unistria'ia (one-lined). }. Whitish, with purple lines. 



1893. 

 velaiicau'lis (supernumerary-stemmed). August. 



Venezuela. 



vela'tipes (supernumerary-stalked). May. Venezuela. 

 veno'sa (veiny). \-\. Greenish, with dusky brown 



lines. Trop. Amer. 1906. 



villo'sa (shaggy). Purple. May. Mexico. 1838. 

 vitta'ta (branded). Purple. April. Mexico. 1837. 

 wendlandia' na (Wendlandian). November. Country 



doubtful. 



PLO'CAMA. (From plokamos, curled hair. Nat. ord. 

 Rubiaceae.) 



Greenhouse shrub of drooping habit. Cuttings in 

 sand, under a bell-glass. Fibrous loam, peat, and sand. 

 P. pe'ndula (drooping). 2. White. Canaries. 1772. 



PLOCOGLO'TTIS. (From plokos, braided or plaited, 

 and glossa, a tongue; the lip is folded. Nat. ord. 

 Orchidaceae.) 



Stove epiphytical orchids. Divisions at the com- 

 mencement of growth. Fibre of peat, sphagnum, bits 

 of charcoal and crocks. 

 P. acumin-z'ta (long-pointed). Malaya. 

 java'nica (Javanese). Malaya. 

 Lo'wit (Low's). Pale yellow, brown. Borneo. 1865. 



PLOCOSTE'MMA. (From plokos, braided or curled, 

 and stemma, a crown. Nat. ord. Asclepiadace;* 1 . Now 

 referred to Hoya.) 

 P. lasiafnthum (woolly-flowered). See HOYA LASIANTHA. 



PLOUGHMAN'S SPIKENARD. Ba'ccharis. 



PLU'CHEA. (Commemorative of N. A . Pluche, author 

 of Spectacle de la Nature. Nat. ord. Composite.) 



Greenhouse shrubs, with one exception. Cuttings in 

 sand, under a bell-glass. Fibrous loam, peat, and sand. 



P. ca'spica (Caspian). 2-3. Purple. August. Caspian 



Sea. Hardy herb. 

 Diosco'ridis (Dioscoridis's). 4. White. September. 



Trop. Africa. 

 I'ndica (Indian). 3. White. October. Trop. Asia 



and Australia. 1819. 



subdecu'rrens (slightly-decurrent). 6. Purple. 

 August. Mexico. 1823. 



PLUM. Pru'nus commu'nis or insiti'tia. 



Superior Kinds. (i) Smith's Early Orleans ; (2) Green- 

 gage ; (3) Brandy Gage ; (4) Washington ; (5) White 

 Magnum Bonum ; (6) Imperatrice ; (7) Victoria, Dennis- 

 ton's Superb ; (8) Coe's Golden Drop ; (9) Early Pro- 

 lific; (10) Ickworth Imperatrice; (n) Coe's Late Red; 

 (12) Pond's Seedling; (13) Reine Claude- Violette ; 

 (14) Kirke's; (15) Diamond; (16) Jefferson. Of these, 

 Nos. i, 3, and 9 are remarkable for their earliness as 

 table fruit. Nos. 6, 7, 8, 10, n, 13, 14, 16, for lateness 

 as table fruit. Nos. 4, 7, 12, 15, are adapted for the 

 kitchen. 



Propagation: by Grafting. The grafting of the Plum 

 is performed in precisely the same manner as the Pear 

 or the Apple, and at a similar period. The Brussels 

 stock is principally used by our nurserymen ; but for 

 such gross sorts as the Washington, the Magnum 

 Bonum, &c., it is a question whether the Muscle stock 

 would not be fitter. We need not enlarge here on the 

 process, which will be found in detail under the head 

 GRAFTING. 



Budding. The same may be said of this process. See 

 BUDDING. 



Seed. This is resorted to in order to procure new 

 varieties ; and to accomplish this, of course, seed from 

 choice varieties is obtained. The mode of sowing, rear- 

 ing, &c., will be found detailed in the articles PEACH and 

 PEAR. 



Culture during the Growing Period. As with the Peach, 

 the Nectarine, Pear, &c., so with the Plum. The first 

 proceeding of the season is disbudding. About the be- 

 ginning of May the trees burst forth into a great amount 

 of spray, and much of this will be ill-placed ; and, 

 indeed, if well-placed, much too crowded. We are, of 

 course, speaking of wall or espalier trees, for there the 

 most attention is requisite. A progressive disbudding 

 is best, the first consisting in merely removing the fore- 

 right and back shoots, unless, as observed with regard 

 to the other stone fruits, vacant spaces occur, when an 

 ill-placed shoot is better than none. Shortly after this 

 period, if the trees be strong, gross shoots or robbers 

 will show themselves, which, when about 6 inches long, 

 should have the points pinched off. In a few weeks 

 more, another disbudding will be expedient, and by this 

 time shoots of a proper character for final reservation 

 may be determined on. The latter may be carefully 

 tied or trained as soon as convenient, and every shoot of 

 a doubtful character, in the thinning out, may have 

 the point pinched off. The rest of the proceedings, 

 indeed, are so similar to the Peach, that it is scarcely 

 necessary to repeat them. 



Culture during the Rest Period. The trees will require 

 some pruning, and this consists principally in thinning 

 out, and reducing the snags or stumps of shoots pinched 

 back in the summer previous. Our practice is to tie 

 down on the old wood, or otherwise train in, as much 

 of the short-jointed wood as possible, without cramming 

 it too thick ; for most of this wood will become studded 

 with blossom-spurs in the succeeding summer. All that 

 is not needed may be cut clear away, as in the Pear; 

 and all useless stumps also. Where wood is wanting to 

 furnish blanks, some of the leading shoots may be 

 shortened back a little ; and, indeed, any points may be 

 shortened which appear spongy and immature. The 

 trees may now be carefully trained or nailed in, and, if 

 necessary, receive any dressing requisite for the insects. 



Diseases and Insects. See PEACH. 



PLUKENE'TIA. (A commemorative name. Nat. ord. 

 Euphorbiaceae.) 



Stove, evergreen twiner. Cuttings in sand in bottom- 

 heat. Fibrous loam, peat, charcoal nodules, and sand. 

 P. volu'bHis (twining). Green. W. Ind. 



PLUMBA'GO. Leadwort. (From plumbum, lead, or 

 a disease of the eye so called, to which a species of 

 Plumba'go was applied. Nat. ord. Leadworts [Plum- 

 baginaceaej. Linn. 5-Pentandria, i~Monogynia.) 



