DIG 



I 295 ] 



DIG- 



D. angustifo'lius (narrow- leaved). 2. Lilac. 



Altai. 1821. 

 fraxine'lla (fraxinella). 3. Purple. Germany. 



1590. 



DICTYA'NTHUS. (From dictyon, net- 

 work, and anthos, a flower; alluding to 

 the markings on the corolla. Nat. ord., 

 Asdepinds [Asclepiadacese], Linn., 5- 

 Pentandria l-l\fonoyynia.) 



Stove climber. For culture, see PASSIFLO'EA. 

 D. Pavo'nii (Pavon's). 10. Green, brown. Sep- 

 tember. New Spain. 1854. 



DICTYOGLO'SSUM. See ACRO'STIOHUM 

 CRINI'TUM. 



DICTY'MIA ATTENUA'TA. A very pretty 

 Fern, brought from New Holland in 1828 ; 

 requires only the shelter of a greenhouse 

 and the usual cultivation. See FERNS. 



DICTYO'PTERIS. (From dictyon, net- 

 work, and pteris, a Fern; referring to 

 the leaves, or fronds.) 



Greenhouse Ferns. See FERNS. 

 D. altenua'ta (tapering). June. Australia. 



luncsnla'ta (spear-head-/eayerf). June. Mau- 



ritius. 1824. Stove. 



macrndo'ntti (large-toothed). May. Australia. 



1840. 



pteroi'des (brake-like). June. Australia. 1842. 



DIDYMGCA'RPUS. (From <&fym0,twin, 

 and carpos, fruit; referring to a double 

 division along the centre of the seed- 

 vessel. Nat. ord., Gesnerworts [Gesner- 

 acese]. Linn., \&-Didynamia 2-Angio- 

 spermia. Allied to Chirita.) 



This must not be confounded with its ally, 

 Streptocarpus. Stove herbaceous. Division ; 

 cuttings of young shoots, wheu commencing 

 growing, in sandy soil, in bottom-heat; peat and 

 loam, with sand, a little turf-mould, and rotten 

 cow-duns. Summer temp., 60 to 80; winter, 

 45 to 55. 



D. crini'tus (Jora#-haired). 1. White, yellow. 

 July. Pulo Penang. 1815. 



Humboldtia'na (Humboldt'e). Lilac. Oc- 



tober. Cejlon. 



DIDYMOCHUE'NA. (Fromdidymos, twin, 

 and chlaina, a cloak; referring to the co- 

 verings of the spore-cases, called seed- 

 vessels. Nat. ord., Ferns [Polypodiacese]. 

 Linn., %-Cryptogamia i-Filices.) 



Handsome stove Ferns, allied to Oxygonium. 

 Divisions; peat and lomi. Summer temp., 60 

 to 85 ; winter, 50 to 55. 

 />. pulche'rrima (fairest). July. Brazil. 

 trunca'tula (little tree). 4. June. Brazil. 

 1838. 



DIELY'TRA. (From dis, two, and ely- 

 tron, a sheath ; referring to the two se- 

 pals, which embrace the flowers in this 

 order, and give the remarkable brilliancy 

 to the flowers of D. specta'bilis. Nat. ord., 

 Fumeworts [Fumariaceee]. Linn., 17-Di- 



adelphia %-Hexandria. Allied to Cory- 

 dalis.) 



D. specta'bilis is the most brilliant hardy plant 

 added to our collections for many years, but fur- 

 nishes the most obvious example of the remark- 

 able economy of the sexual organs of its race. 

 The flowers of Fumitories never open, and their 

 peculiar construction seems to offer no means for 

 the pollen to escape ; but, by a peculiar contriv- 

 ance connected with the parts, fecundation i* 

 effectually and simply brought about. We have 

 failed, however, to effect the process artificially 

 with D. tpeetafbilit. This most beautiful plant 

 was described by Linmeus from dried specimens, 

 but was not seen alive by any European until Mr. 

 Fortune found it in gardens in the north of China, 

 and sent it, in 1846, to the London Horticultural 

 Society. It is a spring-flowering, deciduous, her- 

 baceous plant, with large fleshy roots ; the stalks 

 and leaves rise to 18 inches or two feet, and look 

 like a small-leafed tree-peony; the flowers are 

 produced on spikes from four to six inches long;, 

 and hanging down gracefully on one side. It re- 

 quires rich, light soil, and is readily increased by 

 dividing the crown of the roots early in spring, or 

 by cuttings after the plant is in growth. It will 

 find its way, like the China Rose, into every cot- 

 tage-garden. All hardy herbaceous, and flowering 

 in June ; the same culture is applicable to all the 

 species. 



D. hructeo'sa (bracted). 1. White. N. Amer. 1823. 



Canade'mis (Canadian). J. White. N. Amer. 



1819. 



eueulla'ria (monk's-hood). J. White. N. Amer. 



1731. 



exi'mia (choice). 1J. Flesh. N.Amer. 1812. 



/ormo'*.'* (handsome). 1. Flesh. N. Amer. 1796. 



Lac/itn/t/?o'ra(Lachenalia- flowered). 1. Pur- 



ple. Siberia. 1826. 



specio'sa (showy). 1. Flesh. I'.IO. 



specta'bilis (remarkable). 1$. Purple. Siberia. 



1810. 



tenuifo'tia (fine-leaved). J. Pink. Kamt- 



schatka. 1820. 



DIERVI'LLA. (Named after M. Dler- 

 ville, a French surgeon. Nat. ord., Capri- 

 foils [Caprifoliaceae]. IAnn.,5-Pentandria 

 L-Monogynia. Allied to Leycesteria.) 



A creeping-rooted, hardy shrub. Suckers from 

 the roots ; cuttings in the open ground, in au- 

 tumn ; common, moist, shaded garden-soil. 

 D, lu'tea (yellow-yZowered). 3. June. N. Amer* 

 1739. 



DIE 'TIS. See MORE' A. 



DIGGING with the spade or fork has for 

 its object a loosening of the soil so as to 

 render it more fit for the reception of 

 seeds or plants. Begin at one end of the 

 piece of ground, and with your spade 

 open a trench quite across, one good 

 spade wide and one deep, carrying the 

 earth to the end where you finish ; then, 

 keeping your face to the opening, pro- 

 ceed to dig one spade deep regularly 

 from one side of the piece to the other, 

 turning the spits neatly into the trench, 

 and the next course against these; and 

 so keep digging straight back, spit arid 



