AN ENCYCLOPEDIA OF HORTICULTURE. 



431 



Site continued. 



Only three species call for description here. They thrive 



in any rich soil. S. Napcen may be increased by seeds ; 



and the others by cnttings, inserted in sand, nnder a 



glass, in heat. Many plants, formerly included here, are 



now classed nnder AbutHon. 



S. ina&qnalls (oblique-leaved).* fl. on lateral peduncles about 

 2in. long; calyx segments ovate, acute, ferruginous, pubescent; 

 corolla white, 2in. across when fully expanded, the petals 

 clawed, densely glandular-pubescent outside. May. I. 4m. to 

 Tin. long, slightly undulated, harshly pubescent, cordate-ovate, 

 unequal at base, acuminate ; petioles lin. to 2in. long. A. 7ft. 

 Brazil, 1829. Stove shrub. (B. M. 3436.) 



S. Napsea (Napaea).* JL white, large, disposed in umbellate 

 corymbs; carpels ten, pointed. Summer. I. rive-cleft; lobes 

 oblong, pointed, toothed. A. 4ft, to 10ft North America. A 

 tall, smooth, hardy, herbaceous perennial. (B. M. 2913.) 



S. sessiliflora (sessile-flowered), fl. yellow, small, somewhat 

 glomerate, sessile, axillary and terminal ; corolla scarcely twice 

 the length of the calyx. August to November. I. cordate, acute, 

 serrated. A. 3ft South America, 1827. Stove sub-shrub. 

 (B. M. 2857.) 



SIDALCEA (from Sida, and AlTcea, an ancient Greek 

 name, used by Dioscorides for some Malva; alluding to 

 the appearance and alliances of the plants). OED. Mai- 

 vaceoe. A genus comprising eight species of hardy, 

 mostly perennial herbs, with the habit of Malva or 

 Althaea, natives of Western North America. Flowers 

 shortly pedicellate or sessile, disposed in terminal ra- 

 cemes or spikes ; calyx five-cleft ; petals rose-purple or 

 white; staminal column duplex at apex. Leaves mostly 

 lobed or parted. 8. Candida and S. malvceflora, perhaps 

 the only species in cultivation, require culture similar 

 to Malva (which see). 



S. Candida (white), fl. white, in terminal racemes, freely pro- 

 duced. Summer. 1. roundish, seven-lobed, glossy, long-stalked. 

 A. 2ft. to 3ft Colorado, 1882. 



S. malvsaflora (Mallow-flowered). /., corolla lilac ; racemes 

 many-flowered ; pedicels twice as long as the calyx. Summer. 

 I, radical ones orbicular, loosely five to nine-lobed or incised- 

 crenate ; primary ones sub-truncate at base ; cauline ones pro- 

 foundly seven to nine-cleft ; segments trilobed, toothed at apex, 

 the uppermost ones entire. Sfcem twiggy, slender. A. IJft Texas, 

 1838. (B. R. 1036, under name of Sida malvceflora.) SYN. Cal- 

 lirhoe spicata (B. G. 737.) 



SIDE- GRAFTING. A method of Grafting that 

 may be adopted for supplying a branch or stem to a tree 

 when one is deficient ; it may be practised without cutting 

 away the head of the stock. For mode of application, see 

 Grafting. 



SIDERITIS (an old Greek name, used by Dioscorides 

 for several plants, and derived from sideros, iron ; so 

 named on account of a supposed property of healing 

 flesh-wounds inflicted by iron). Ironwort. STNS. Bur.js- 

 dorffia, Hesiodia, Marrubiastrum. OBD. Labiates. A 

 genus comprising about forty-five species of hardy or 

 half-hardy, often woolly or softly pilose herbs, sub- 

 shrubs, or shrubs, natives of the Mediterranean region 

 and the Canary Islands, numerous in the Orient. Flowers 

 often yellowish, small; calyx tubular, with five erect, 

 usually somewhat spiny teeth; corolla tube included; 

 limb bilabiate, the upper lip entire, emarginate, or bifid, 

 the lower one trifid, its middle lobe much the largest ; 

 stamens four; whorls six to many-flowered, axillary or 

 interruptedly or densely spicate. Nutlets ovoid, smooth. 

 Leaves entire or toothed; floral ones reduced to bracts, 

 or the lower cauline ones conformed. The species (a re- 

 presentative selection of which is given below) prefer 

 a dry, sandy or chalky soil. Propagation may be effected 

 by seeds, by cuttings, or by divisions. All have yellowish 

 flowers, produced in summer. 



S. canariensis (Canary Islands), fl., corolla scarcely exceeding 

 the calyx teeth, the upper lip emarginately bifid, the lower 

 spreading; whorls twenty to thirty -flowered, sub-globose; 

 racemes simple. 1. ovate, crenate. cordate at base, 2in. to 4in. 

 lone, thick, wrinkled, velvety-woolly. A. several feet Teneriffe, 

 1869. ' Greenhouse shrub. (Bef. B. 160.) 



S. candlcans (whitish), fl. sub-sessile ; corolla scarcely exceed- 

 in" the calyx ; whorls usually ten-flowered, the lower ones 

 distant; racemes simple. I. ovate, slightly crenate, trnncately 

 cordate at base, thick. A. 3Xt Teneriffe, 1714. Habit of 



Sideritis continued. 



S. eanarienrit, but wholly clothed with white wool Green. 

 house shrub. 



S. incana (hoary), fl., calyx white- woolly ; whorls distant about 

 six-flowered. 1. sessile, oblong-linear, obtuse, entire, iin. to llin 

 long, white-woolly ; upper ones small, remote. Branches white- 

 woolly or tomentose. A. 1ft Spain, 1752. Half-hardy sub-shrub. 



S. perfoliata (perfoliate-leaved). fl. sessile; corolla scarcely 

 exceeding the calyx teeth ; whorls all distinct, rather distant 

 L half-amplexicaul, ovate-oblong or lanceolate, softly villous. 



,ul, ovate-oblong or lanceolate, softly vil 

 ; floral ones broad, spreading. Branches < 

 i. South Europe, 1731. Half-hardy sub- s : 



liin. to 2in. long ; norai ones oroaa, spreading. Branches erect, 

 1ft to lift high. South Europe, 1731. Half-hardy sub-shrub! 



S. scordioides (Scordium-like). JL, corolla yellowish, the npper 

 lip paler or white, slightly exceeding the calyx teeth ; whorls 

 interruptedly or densely spicate; spikes lin. to Sin. long. 

 1. ovate, oblong, or oblong-linear, narrowed at base, incised- 

 toothed ; floral ones very broad, spiny-toothed. A. 1ft South 

 Europe, 1597. Hardy sub-shrub. 



S. 8. alplna (alpine), fl. in densely or somewhat interruptedly 

 spicate whorls. L oblong-ovate, few-toothed, cano-villous or at 

 length glabrous. Branches short, decumbent Pyrenees, 1827. 



S. 8, angnstifolia (narrow-leaved). L oblong-linear, almost 

 glabrous. Pyrenees, 1597. 



S. 8. elongata (elongated), fl. in interruptedly or rarely densely 

 spicate whorls. I. oblong or oblong-lanceolate, incised-toothed 

 nearly glabrous. Branches elongated, ascending or erect " 



S. taurlca (TaurianX JL, corolla slightly larger than the calyx. 

 1. thick, oblong-lanceolate or spathulate, narrowed at base, the 

 lower ones crenulate, densely white-woolly. A. lift Tauria, 

 1822. Hardy sub-shrub. 



SIDERODEXDRON. A synonym of Ixora (which 

 see). 



SIDEROXYLOIDES. A synonym of Ixora (which 



see). 



SIDEROXYLON (from sideros, iron, and xylon, 

 wood ; alluding to the very hard wood furnished by 

 the various species). STNS. Achras and Sapota (as far as 

 the Old World species are concerned), Robertsia. OED. 

 SapotaceoB. A genus comprising nearly sixty species of 

 stove or greenhouse, glabrous or pubescent trees or 

 shrubs ; they are broadly dispersed through the tropics, 

 a few are found in the extra-tropical regions South 

 Africa, Australia, and New Zealand and one in Madeira. 

 Flowers usually small, sessile or pedicellate, fascicled 

 at the nodes or axillary, five-parted ; calyx segments 

 closely imbricated; corolla broad or tubular-campanu- 

 late. Berries ovoid or globose. Leaves coriaceous., 

 scattered. The fruits of S. dulcificum have a very sweet 

 taste, and are known, with others, in West Africa, under 

 the name of Miraculous Berry. Several of the species 

 have been introduced, but they are of little or no value 

 from a garden standpoint. 



SIDE-SADDLE FLOWER. See Sarraceiiia. 

 SIEBERA (so called in honour of F. W. Sieber, of 

 Prague, 1785-1844, a botanist who travelled in the 

 East). SYN. Trachymene (of De Candolle). OED. Um- 

 bellifercB. A genus comprising fourteen species of green- 

 house, rigid herbs with a perennial (almost woody) stock 

 and virgate branches, or Heath-like shrubs, glabrous or 

 slightly glandular-pubescent, all natives of Australia. 

 Flowers white, small ; calyx teeth small, but usually con- 

 spicuous ; petals entire ; involncral bracts small ; umbels 

 compound or rarely simple, terminal. Leaves all entire, 

 or the lower ones divided or all reduced to small scales, 

 without stipules. The under-mentioned species is, per- 

 haps, the only representative of the genus which has 

 been introduced to English gardens, and is probably not 

 now ii: cultivation. For culture, fee Trachymene. 

 S. Billardleri lanceolata (Billardiere's, lanceolate-leavedX 

 fl., involucral bracts linear ; umbels compound, sessile or pe- 

 duncled. L lanceolate, acute, narrowed at the base, mostly above 

 iin. long. 1829. A shrub, either low and diffuse or erect and 

 attaining a height of 2ft to 3ft (B. M. 3334, under name of 

 Trachymene lanceolata,) 



SIEBERIA. A synonym of Habenaria (which see). 



SIEGESBECKIA (named in honour of John George 

 Siegesbeck, M.D., a German botanist). OED. Composite. 

 A genus consisting of only a couple of species of hardy, 



