542 



THE DICTIONARY OF GARDENING, 



Oxalis continued. 



with glandular hairs. Early spring. I., leaflets three, linear, 

 emarginate, with two red glands beneath. Stem declinate, 

 naked at the base. h. 3in. Cape of Good Hope, 1774. (B. M. 

 155.) 



O. violacea (violet-coloured). /. pink, erectish, with a short 

 involucre ; scape umbelliferous, three to nine-flowered. Spring 

 to autumn. I., leaflets three, obcordate, smooth, reddish under- 

 neath. Bulbs fusiform, black, h. Sin. North America, 1772. 

 Hardy perennial: (B. M. 2215.) 



OXEYE. See Buphthalmum. 



OXEYE DAISY. See Chrysanthemum Leucan- 

 themnm. 



OXIiIP. See Primula elatior. 



OXYANTHUS (from oxys, sharp, and anthos, a 

 flower ; referring to the sharply-toothed calyx and 

 corolla). STN. Megacarpha. OBD. Rubiacece. A genus 

 comprising about a dozen species of highly ornamental 

 stove trees and shrubs, with terete branches, inhabiting 

 tropical, sub-tropical, and South-eastern Africa. Flowers 

 white or yellow, scented, elongated, disposed in short or 

 long, many-flowered, axillary corymbs ; calyx five-toothed ; 

 corolla hypocrateri-formed, five-lobed ; pedicels bracteo- 

 late. Leaves opposite, shortly petiolate, often oblique at 

 base, coriaceous; stipules rather large, intra-petiolar. 

 oblong, obtuse or acute, deciduous. The two species 

 described below thrive in a peaty soil, and should be 

 grown in well-drained pots, in a light, airy position. Prac- 

 tically, the conditions which are found to suit their near 

 allies, the Gardenias, will also suit these. Propagated by 

 cuttings, inserted under a bell glass, in bottom heat. 

 O. speciosus (showy). A synonym of 0. tubifiorus. 

 O. tubiflorus (tube-flowered).* /. white, 6in. long, with the limb 

 2in. across, in terminal heads. July. I. broad, 5in. long. 

 Branchlets, leaves, and calyces glabrous, h. 3ft. to 4ft. Sierra 

 Leone, 1789. Shrub. SYNS. 0. speciosus (B. M. 1992), Gar- 

 denia, tubiflora (A. B. R. 183). (B. M. 4636.) 

 O. versicolor (various-coloured), fi. whitish, rose-colour, and 

 pink ; corolla tube 4in. to 6in. long ; segments linear, scarcely 

 longer than the stamens. July. /. oval-lanceolate, acuminate, 

 glabrous, h. 3ft 1839. (F. d. S. ii. 148.) Stated to come from 

 Cuba in work just quoted ; it, however, must be a native of 

 tropical Africa. 



OXYBAFHUS (from oxybaphon, a vinegar saucer, 

 or small shallow vessel; in allusion to the shape of the 

 involucre). Umbrella Wort. SYNS. Calymenia, Calyx- 

 hymenia, Vitmania. OBD. Nyctagineee. A genus com- 

 prising about a score species of greenhouse or hardy, 

 annual or perennial, erect or prostrate herbs, mostly 

 natives of Western America, a few being indigenous to 

 the Eastern States of North America, and one Hima- 

 layan. Flowers white, pink, or scarlet; involucre one to 

 five-flowered; perianth campanulate or funnel-shaped. 

 Fruit small. Leaves opposite, sessile or petiolate. The 

 species are of no great value for horticultural purposes. 

 Those described below thrive in a sandy-loam soil. Pro- 

 pagated by seeds, sown in the open border in May, or 

 on a mild hotbed in March ; or by divisions in spring. 

 O. Cervantesii (Cervantes'), fl. bright pink, panicled ; peduncles 

 and involucres villously viscous. Summer and autumn. I. oppo- 

 site, long-stalked, cordate, obtuse, entire, slightly pubescent ; 

 margins ciliated with short hairs, h. lift. Mexico, 1823. 

 Half-hardy perennial. (S. B. F. G. 84.) 



O. viscosus (clammy). ;'. pink, racemose. June to October. 

 I cordate-orbicnlate, acute, tomentose. A. 2ft. Peru, 1793. 

 Hardy annual When the seeds are ripe, the calyx turns brown, 

 expands, and is suspended over them like a little umbrella. 



OXYCARFUS. A synonym of Garcinia (which 

 see). 



OXYCEB.OS. A synonym of Randia (which see). 



OXYCLADIUM. Included under Mirbelia (which 

 see). 



OXYCOCCUS (from oxys, sharp, and kokkos, a berry ; 

 referring to the sharp, acid taste of the berries). Cran- 

 berry. SYN. Schollera. OBD. Vacciniareai. A genus 



Oxycoccus continued. 



comprising only a couple of species of small, hardy 

 decumbent or sub-erect, very glabrous shrubs, natives 

 of Europe, North Asia, and North America. Flowers 

 axillary or terminal, solitary or few, nodding or droop- 

 ing ; corolla pink, with four or five linear, revolute seg- 

 ments. Berry globose, fleshy, many-seeded. Leaves small, 

 alternate, persistent, entire. Branches filiform. Both 

 these plants naturally affect swampy spots, and the first- 

 named is planted nearly always with a view to the 

 periodic flooding of the beds ; it will, however, thrive 

 in a peaty border where no great amount of moisture 

 is present, but under such conditions will not, of course, 

 develop so quickly. 0. palustris is a neat little plant, 

 worth growing in pots or pans standing in water. The 

 species may be propagated by means of the long, creeping 

 shoots, which frequently root ; or by cuttings, inserted 

 under a hand glass, and shaded until established. 



O. macrocarpus (large-fruited).* American Cranberry, fl. pink, 

 on erect, proliferous branches. Spring. I. elliptic-oblong, nearly 

 flat and obtuse, glaucous beneath. Stems prostrate, filiform, 

 creeping. North America, 1760. This species is largely culti- 

 vated in North America for the sake of its fruits, which are 

 bottled or put into barrels, &c.> as well as used fresh for tarts, 

 <fcc. (B. M. 2586, under name of Vaceinium macrocarpum.) 



O. palustris (marsh-loving).* Common Cranberry, /.pink, with 

 reflexed, oblong segments ; pedicels terminal, one-flowered. May. 

 fr. dark red, with a strong acid taste. I. small, ovate, entire, 

 acute, smooth, with revolute margins. Stems filiform, creeping. 

 Northern hemisphere (Britain). (Sy. En. B. 876, under name of 

 Vacchiium Oxycoccus.) 



OXYDENDRON (from oxys, sour, and dendron, a 

 tree; in allusion to the foliage being sour to the taste). 

 OBD. Ericacece. A monotypic genus. The species is a 

 beautiful, hardy tree; it thrives in a moist, peaty soil, 

 and is propagated from imported seeds. 



O. arborenm (tree-like).* Sorrel-tree. JL white, in terminal 

 panicles of many racemes ; corolla ovate, five-toothed ; filaments 

 hairy ; style thick, five-angled. June and July. I. oblong- 

 lanceolate, acuminated, serrulate, glabrous. Branches tapering. 

 A. 15ft. to 40ft. Eastern United States, 1752. SYN. Andromeda 

 arborea (under which name it is figured in R M. 905). 



OXYCrONIUM. Included under Asplenium. 

 OXYIiOBIUM (from oxys, sharp, and lobos, a pod; 

 legumes or seed-pods ending in a sharp point). Including 

 Callistachys and Podolobium. OBD. Leguminosae. A genus 

 comprising about twenty-seven species of greenhouse or- 

 namental shrubs, or rarely under-shrnbs, confined to Aus- 

 tralia. Flowers yellow, or partly or totally purple-red, 

 disposed in terminal or axillary racemes ; petals clawed ; 

 standard orbicular or reniform ; wings oblong. Leaves 

 opposite, whorled, or scattered, simple, entire, or rarely 

 with pungent lobes. The species thrive in a compost 

 of peat and loam, with plenty of sand added. Propa- 

 gated, during April or May, by cuttings of rather firm 

 young shoots, inserted in sand, under a bell glass. Perfect 

 drainage is most essential. The species here described 

 are those usually seen in greenhouses. 

 O. acntnm (acute), fl. red, yellow, all axillary, in loose clusters, 

 shorter than the leaves. March. I. in whorls of three, or 

 scattered, ovate-elliptic or almost oblong, iin. to jin. long, taper- 

 ing into a pungent i>oint. A. 2ft, 184 (B. M. 4040, under name 

 of Gastroktbiuin acvtum.) 



O. Callistachys (Callistachys).* fl. yellow, in den-e, terminal 

 racemes. June to August. 1. lanceolate-acuminate, mostly in 

 irregular whorls of three. A. 3ft. to 4ft. 1815. SYNS. Cattixtachys 

 lanceolata (B. R. 216), C. lomiifotia (P. M. B. viii. 31), C. ovata 

 (B. M. 1925), 'C retuaa (L. B. C/1983). 



O. capitatum (headed), fi. yellow, in axillary clusters, or some- 

 times forming a terminal, compact, corymbose raceme or head. 

 June. I., lowest sometimes obovate, all the others oblong- 

 lanceolate or linear, lin. to 2in. long, obtuse, with a short, 

 usually recurved point. A. 2ft 1837. (B. R. 1843, 16.) 

 O. cordifolium (cordate-leaved), fl. orange-red, usually three or 

 four together, in small, terminal heads or umbels. April. /. ir- 

 regularly whorled in threes, ovate -cordate, from iin. to ^in. long. 

 A. 1ft. to 2ft. 1807. (A. B. R. 492 ; B. M. 1544 ; L. B. C. 937.) 

 O. cuneatum obovatum (obovate, wedge-shaped).* fl. yellow, 

 or the lower petals purple, in dense, corymbose racemes or 



