AN ENCYCLOPEDIA OF HORTICULTURE. 



459 



Having the margins finely and 



DENTICULATE. 



slightly toothed. 



DENTIDIA. A synonym of Perilla. 

 DENUDATE. A hairy or downy surface becoming 

 naked. 



DEODAR CEDAR. See Cedrus Deodara. 

 DEFARIA (from depas, a cup ; referring to the form 

 of the involucre). Including Cionidium and Trichocarpa. 

 ORD. Filices. A small genus of rare stove Ferns, In- 

 volucre shallowly cup-shaped, membranaceous, not two- 

 valved. Sori protruding from the margin of the frond. 

 For general culture, see Ferns. 



D. conclnna (neat). fronds bipinnate; lower pinnae more than 

 1ft. long, nearly 2m. broad, deeply cut hi the lower part only ; 

 lobes blunt, entire, broadly oblong-rhomboidal, unequal-sided 

 and decurrent downwards, sori two to six to a lobe. Peru. 

 SYN. D. Matthewsii. 



D. Macrsei (Macray's). A synonym of D. prolifera. 

 D. Matthews!! (Matthews'). A synonym of D. coneinna. 

 D. Moore! (Moore's), fronds 1ft. to IJft. long, 6in. to 9in. broad, 

 cordate-deltoid in general outline, pinnate below ; lower pinna 

 6in. to 9in. long, 4in. to 6in. broad, cut down to the rachis into 

 deeply-pinnatifid lobes, sori copious, extra marginal, or stipitate. 

 New Caledonia. 



D. nephrodloides (Nephrodium-like). fronds 2ft. to 3ft. long, 

 rather firm and shining, quadripinnate ; lower pinnae stalked, 

 under 1ft. long; pinnules deltoid, with inciso-pinnatifld lobes, 

 4m. long ; upper ones gradually smaller, confluent and toothed 

 only, sori marginal and prominent, but sessile, globose. New 

 South Wales. 



D. prolifera (proliferous). 1 

 6in. long, lin. to 14in. T 

 toothed, sori four to t\ 

 stipitate. Sandwich Islands. SYN. D. Macrcei. 



DEPAUPERATED. Imperfectly developed. 



DEPENDENT. Hanging down. 



DEPPEA (named in honour of M. Deppe, who col- 

 lected and sent home many plants from Mexico). SYN. 

 Choristes. ORD. Rubiacece. A genus containing about 

 twelve species of shrubs, all natives of Mexico. Flowers 

 yellow, small, arranged in cymes; corolla rotate, or shortly 

 funnel-shaped. Leaves, opposite, petiolate, membranous, 

 ovate or lanceolate. D. erythrorhiza is a shrubby green- 

 house plant, with a woody root and reddish inner bark. 

 For culture, see Bouvardia. 



D. erythrorhiza (red-rooted).* ft. yellow ; cymes terminal and 

 axillary, pedunculate, of three or four branches. I. petiolate, 

 elliptic, acuminated at both ends, rather pilose above and on the 

 margins ; stipules triangular, deciduous, h. 1ft. to 3ft. 



DEFRESSARIA CICUTELLA. See Flat-body 

 Moth. 



DEFRESSARIA DAUCELLA. See Carrot 

 Blossom Moth. 



DEFRESSARIA DEPRESSELLA. See Purple 

 Carrot-seed Moth. 



DEPRESSED. Pressed down ; having the appearance 

 of being pressed. 



DESCANTARIA. Included under Tradescantia. 



fronds pinnate ; lower pinnae about 

 I, pinnatifld; lobes oblong, slightly 

 twelve to a lobe, extra marginal, sessile or 



FIG. 640. LEAF OF DESFONTAINEA SPINOSA. 



DESFONTAINEA (named after E. L. Desfontaines, 

 a celebrated French botanist, born 1752, died 1833). OBD. 

 Loganiacece. A very beautiful, hardy, evergreen shrub, of 



Desfontainea continued. 



easy cultivation. It thrives in either a peat or loam soil, 

 but preferably the latter. Cuttings will root if inserted 

 in either of the soils above named, with the addition of a 

 little sand; a gentle heat would accelerate the rooting. 

 It forms an admirable plant for greenhouse or conser- 

 vatory decoration, and even when out of flower its pecu- 

 liar Holly-like appearance is most attractive. 

 D. spinosa (splnose). fl. showy, terminal, solitary, pedunculate; 

 corolla scarlet, with a yellow limb, tubular. August. I. elliptic- 

 oblong, coriaceous, glabrous, shining above, cuneated, and quite 

 entire at the base, with spiny-toothed margins, h. 3ft. Andes 

 from Chili to New Grenada, 185i See Fig. W. (B. M. 4781.) 

 DESIGNS. The art of taking plans or Designs of 

 objects should, according to London, be considered as part 

 of a gardener's general education, since none who aspire 

 to any degree of eminence in their profession, ought 

 to be ignorant of the first principles of geometry 

 and drawing. A Design of the whole or any part of a 

 garden, as, for instance, a flower-bed, intended as a 

 working plan, should, above all things, be accurately 

 drawn. It is impossible to correctly transfer an intri- 

 cate Design from paper to show itself in a given space 

 on the ground, unless the boundary of that space has 

 been previously measured, and it, with all the arrange- 

 ments of the enclosure, carefully prepared on an equal 

 scale throughout. In the case of a garden, the full size 

 being known, and the scale determined (as large a one 

 as practicable being preferred), the positions of any per- 

 manent features of the inside, such as large trees, glass 

 structures, &c., either those already existing, or others 

 contemplated, should be marked, and the scale attached 

 to the Design for reference. A plan of a flower-garden 

 or carpet - bed should have the same rule of drawing 

 to scale measurement applied, as the position and space 

 to be occupied by different plants can be previously 

 arranged, and the proportion of colours properly in* 

 sorted. A glance at this, when bedding time comes, 

 will at once indicate the positions assigned to all the 

 plants, and so prevent much confusion that would 

 otherwise prevail. Intricate carpet-bedding Designs are 

 often worked out by marking the lines with white sand ; 

 others may be shown with stakes or small pegs. Designs 

 for glass structures vary according to the requirements 

 of the plants for which they are intended; but each 

 should show, in the same proportion, all the working 

 details it is proposed to introduce. 



DESMANTHUS (from desme, a bundle, and anthos, 

 a flower; the flowers are collected into bundles or spikes). 

 ORD. Leguminosce. A genus of stove perennial suffruticose 

 herbs or shrubs, all the species of which belong to the New 

 World, except one, which occurs everywhere in tropical 

 regions. Flowers all hermaphrodite; calyx campanulate, 

 shortly dentate ; petals free, or slightly cohering, valvate. 

 Leaves bipinnate; leaflets small; stipules setaceous, per- 

 sistent. There are about eight species, one or two of 

 which have been successfully cultivated in this country. 

 In their native habitats, all are more or less ornamental. 



DESMOCBL2ETA. Included under Pnpalia (which 

 see). 



DESMODIUM (from desmos, a band ; in reference to 

 the stamens being connected). ORD. Leguminosce. A 

 genus containing about 125 species of suffruticose herbs 

 or sub -shrubs, found in all warm parts of the globe. 

 The genera Catenaria, Dendrolobium, Dicerma, Dollinera, 

 Heteroloma, Phyllodium, and Pteroloma, are included 

 by Bentham and Hooker under Desmodium. Flowers 

 purple, blue, rose, or white, in usually loose terminal 

 racemes. Leaves pinnately-trifoliolate ; stipels two at the 

 base of the terminal leaflet, and one at the base of each 

 lateral leaflet. Stove and greenhouse plants, except where 

 otherwise stated. For culture, see Cnestis. 

 D. alatum (winged). A synonym of D. triquetrum. 

 D. biarticulatum (two-jointed), fl. yellow, disposed in an almost 

 naked terminal raceme. July. 7. trifoliolate ; leaflets about equal 



