DIP 



[SOI ] 



DIS 



water. Nat. ord., Teaselworts [Dipsaca- 

 ceeej. Linn., 4-Tetrandria 1-Monogynia. 

 Allied to Scabious.) 



The onlv plant in this genus worthy of any 

 remark is D.fullu'num, used by fullers in dress- 

 ing cloth. For the cultivation of this piant, 

 ami the use of the heads by the fuller, sef Cottage 

 Gardener, v. 83. Hardy biennials. Seeds ; com- 

 mon soil. 

 D.fti'rox (fierce). 3. Purple. July. South 



Europe. 1818. 

 fullo'num (fuller's;. 6. Purple. July. Britain. 



Gmeli'ni (Gmelin's). 3. Blue. July. Cau- 



casus. 1820. 



ine'rmis (unarmed). 4. White. Nepaul. 1823. 



iacinia'tus (cut-leaved). 6. Purple. July. 



Germany. 1683. 



pilo'sus (shaggy). 4. White. August. Britain. 

 There are other species, but mere weeds. 



DIPTERACA'NTKUS. (From dis, two, or 

 double, and akantha, a spine ; double- 

 spined. Nat. ord., Acantliads [Acan- 

 thacese]. Linn., ]A-Didynamia 2-Anyio- 

 spermia. Ailed to Euellia.) 



Stove evergreens. Cuttings in sandy soil, under 

 a glass, not close ; loam and peat. Summer 

 temp., 60 to 85 ; winter, 50 to 55. 

 D. cilia'ta (hair-fringed). 2. Purple. July. 

 E. Ind. 1806. 



pa'tuln (spreading). l. Pale violet. July. 



E. I ud. 1774. 



sca'ndens (climbing). White. 



DI'PTERIX. Tonquin Bean. (From dis, 

 double, and pterix, a wing; referring to 

 the two upper segments of the calyx. 

 Nat. ord., Leguminous Plants [Faba. -ete]. 

 Linn., \l-Diadelphia -Decandria. Allied 

 to Dalbergia.) 



The Tonga, or Tonquin Bean, used by per- 

 fumers and snuff-makers, is the seed of this tree : 

 hence the specific name. Stove evergreen tree. 

 Cuttings in sand, under a glass, in moist heat, in 

 April; rich, rough loara. Summer temp., 60 to 

 85 ; winter, 60 to 55. 



D. odora'ta (sweet-scented). 60. Purple. Guiana. 

 179J. 



DI'RCA. Leather- wood. (From dirkc, 

 a fountain; the plant growing in moist 

 places. Nat. ord., Daphnads [Tbymela- 

 ceaj]. Linn., S-Octandriu \-Monog\jnia. 

 Allied to Daphne.) 



Hardy deciduous shrub. Layers in autumn; 

 seeds in spring; sandy, peaty soil, and moist si- 

 tuation. 



D. palufstrls (marsh). 6. Yellow. March. Vir- 

 ginia. 1750. 



DI'SA. (Probably the native name. A 

 genus of curious ground-orchids, natives 

 of the Cape of Good Hope. Perhaps the 

 most splendid is D. grandijlo'ra, a native 

 of the top of Table Mountain, behind 

 Cape Town, growing in a spongy kind of 

 peat earth, on the margin of pools, in tl <s 



wet season ; but it has hitherto resisted 

 the skill of British cultivators.) 



Greenhouse terrestrial orchids. Division ; peat 

 and loam, with a portion of sand. Summer tc;np., 

 60 to 80; winter, 45 to 55. 

 D. bractea'ta (bracted). f. Green. June. .1818. 



chrysosta'chya (yellowish-spiked). 1. Yellow. 

 June. 



cornu'ta (horned). l. Pale blue. June. 1805. 



draco'nis (dragon). 1. White, purple. June. 



1823. 

 ferrugi'nea (rusty). . Brown. June. 1820. 



flexua'sa (zigzag), f. 1823. 



graminifo'lia (grass-leaved). l. Blue. 1825. 



grandifio'ra (large-flowered). 1. Scarlet. July. 



1825. 



la'cera (jagged), f. White. June. 1826. 



macuta'ta (spotted). 1. Blue. June. I8i5. 



prasina'ta (itek-green-flowered). J. Green, 



red. June. 1810. 



tpatula'ta (spatula-fipped). 1. Pale blue. June. 



1805. 



DISA'NDRA PBOSTRA'TA we have united 

 to Sibthorpia. 



DISBUDDING is the removal, soon after 

 they have burst into leaves, of such imds 

 as, if allowed to grow into shoois, wouid 

 be misplaced. Thus, buds protruded di- 

 rectly in the front of branches trained 

 against walls, or fore-right shoots, as they 

 are correctly termed, and buds that 

 would produce shoots in places already 

 sufficiently filled with branches, may be 

 removed, or disbudded. The object is to 

 strengthen the desirably-placed buds by 

 thus confining to them the expenditure 

 of sap. There is no better mode of aid- 

 ing a weakly plant to a more vigorous 

 and robust growth than judicious dis- 

 budding ; but an over-robust and super- 

 luxuriant tree had better be allowed to 

 exhaust itself by a more profuse deve- 

 lopment of leaf-buds. By judicious dis- 

 budding, which should always be per- 

 formed gradually, any winter pruning is 

 almost rendered unnecessary, and in all 

 instances is diminished. 



DISCA'RIA. (From diskos, a disk; hav- 

 ing a large fleshy disk. Nat. ord., Mham- 

 nads [Khamnace]. Linn., ^-Tetrundria 

 \-Monogynia. Allied to Colletia.) 



Greenhouse evergreen, from New Holland. Cut- 

 tings of half-ripe shoots in sand, under a glass, 

 in April, kept rather close and hot ; sandy loaiu 

 and peat. Summer temp., 65 to 75; winter, 

 40 to 45. 

 D. austra'lia (southern). Yellow. May. 1824. 



DISCHI'DIA. (From rfis, twice, and schizo, 

 to split ; referring to an obscure process 

 in the construction of the flower. Nat. 

 ord., Asclep%ads [Asclepiadacese]. Linn., 

 &-Pentandria l-Monoyynw. Nearly related 

 to Stephanotis and Hoya.) 



