582 OLACINE.&. VI. GEIA. VII. PSECDALEIA. VIII. PSEUDALEIOIDES. IX. ICACINA. AURANTIACE^E. 



umbellate ; branches spinose ; leaves roundish, coriaceous, al- 

 most sessile, pubescent, f? . S. Native of Hispaniola. Flowers 

 small, yellowish ? 



.Fierce-branched Ximenia. Tree ? 



Cult. The species of Ximenia thrive well in a mixture of 

 loam and peat ; and cuttings will root in sand under a hand- 

 glass, in heat. 



VI. GE LA (from yeXa, gela, the light of the sun, which is 

 from ytXtw, geleo, to shine ; in allusion to the shining leaves). 

 Lour. coch. 1. p. 285. Selas, Spreng. syst. 2. p. 172. 



LIN. SYST. Octdndria, Monogy'nia. Calyx very short, 4- 

 parted. Petals 4, linear, smooth. Stamens 8. Anthers 

 roundish. Style 1. Stigma bifid. Drupe 1-seeded. A little 

 tree, with ovate, shining, quite entire, opposite leaves, and small 

 yellowish flowers disposed in axillary corymbs. 



1 G. LANCEOLA'TA (Lour, cochin. 4. p. 285.). Tj.G. Native 

 of Cochin-china. Selas lanceolatum, Spreng. syst. 2. p. 216. 

 Ximenia lanceolata. D. C. prod. 1. p. 533. 



Lanceolate-\ea.\e& Gela. Clt. 1823. Shrub 5 feet. 



Cult. A mixture of loam, peat, and sand will suit this shrub 

 well ; and cuttings will root in sand under a hand-glass. 



f Genera not sufficiently known, but certainly belonging to 

 the present order. 



VII. PSEUDALEIA (i/*v&>, pseudo, false, tXata, elaia, an 

 olive ; form of fruit like that of an olive). Pet. Th. gen. mad. 

 no. 51. D. C. prod. 1. p. 533. 



LIN. SYST. Hexandria, Monogynia. Calyx small, nearly 

 entire. Petals 3, conniving into a tube. Filaments 6, adnate 

 to the petals, hence they appear epipetalous. Capillary threads 

 forked at the apex on each side of the petals. Ovary conical. 

 Style length of corolla. Stigma 3-lobed. Drupe spherical, 

 1 -seeded. Seeds exalbuminous. Embryo with indistinct fleshy 

 cotyledons. From the flowers this shrub appears to be inter- 

 mediate between Olax and Heisteria, but the seed is truly 

 distinct. 



1 P. MADAGASCARIE'NSIS (D. C. prod. 1. p. 533.) Tj. S. 

 Native of Madagascar. A little branching tree, with alternate 

 smooth leaves, and axillary few-flowered peduncles. O4ax pseu- 

 daleia. Willd. in Steud. nom. Flowers white ? 



Madagascar Pseudaleia. Shrub 10 feet. 



Cult. A mixture of loam and sand will suit this tree very 

 well ; and cuttings will root in sand, under a hand-glass, in heat. 



VIII. PSEUD ALEIOI'DES (in reference to its similarity to 

 the foregoing genus). Pet. Th. gen. mad. no. 52. D. C. prod. 1. 

 p. 533. 



LIN. SYST. Hexandria, Monogynia. Calyx small, entire. 

 Petals 4, unequal, broad and connivent at the base. Stamens 

 6, with broad filaments, unequally applied to the petals, and 

 appear to be inserted in them. Anthers inserted by their apex. 

 Ovary 1-seeded. Style length of corolla. Stigmas 3, globose. 

 Fruit unknown. 



1 P. THOUA'RSH(D. C. prod. 1. p. 533.). tj. S. Native of 

 Madagascar. A weak shrub with alternate leaves and unilateral 

 few-flowered racemes. O'lax pseudaleioldes, Willd. in Steud. 

 nom. Flowers small, and probably white. 



Du Petit Thouars's Pseudaleioides. Shrub 6 feet. 



Cult. See Pseudaleia for cultivation and propagation. 



f A genus allied to Olacinece. 



IX. ICACI V NA (this name refers to the similarity of the 



plant with that of Chrysobalanus Icaco, a name given by the 

 Americans to the fruit of that shrub). Adr. Juss. mem. soc. 

 hist. nat. par. 1823. 1. p. 174. D. C. prod. 1. p. 534. 



LIN. SYST. Pentdndria, Monogynia. Calyx short, 5-cleft, 

 usually permanent. Petals 5, valvate in the bud, alternating 

 with the lobes of the calyx and 3-times larger than them, villous 

 on the inside at the base. Stamens 5, erect, alternating with 

 the petals. Anthers cordate, fixed by their middle, 2-celled ; 

 cells opening lengthwise. Style simple, incurved, truncate at 

 the apex. Ovary seated on a glandular disk, 1-celled. Fruit 

 fleshy, containing a large nut. A shrub with simple, alternate, 

 exstipulate, short-stalked, ovate, entire, reticulately-nerved 

 leaves, and small panicles of white flowers. 



1 I. SENEGALE'NSIS (Ad. de Juss. 1. c. t. 9.). Tj . S. Native 

 all along the coast of Guinea by the sea-side. Chrysobalanus 

 lutea, Hort. trans. 5. p. 453. This is a spinose shrub, it has 

 much the habit of Citrus limbnum. The fruit is about the size 

 of an Orlean's plum, of a yellow colour, with a flavour much 

 resembling that of noyeau. 



Senegal Icacina. Fl. April, May. Shrub 1 feet. 



Cult. This shrub would thrive in this country in a mixture 

 of one-quarter loam and three-quarters sand, which should be 

 repeatedly watered with salted water, and ripened cuttings will 

 probably root in sea-sand under a hand-glass, in heat. 



ORDER XXXIX. AURANTIA'CE^E (plants agreeing with 

 the Orange in important characters). Corr. ann. mus. 6. p. 376. 

 Mirb. bull. phil. 1813. p. 379. D. C. prod. 1. p. 535. 



Calyx urceolate, campanulate, somewhat adnate to the disk, 

 short, 3-5-toothed (f. 101. a.), marcescent. Petals 3-5 (f. 101. 

 b.), broadest at the base, sometimes free, sometimes a little con- 

 nected at the base, inserted on the outside of the disk, imbricate 

 in aestivation by the margins. Stamens equal in number with 

 the petals, or double, or multiple (f. 101. c.) that number ; fila- 

 ments flat at the base, sometimes free^ sometimes variously con- 

 nected in many bundles, sometimes truly monadelphous, but 

 always free at the apex, and subulate. Anthers terminal, in- 

 serted by the base, erect. Ovary ovate, many-celled (f. 101. d.). 

 Style 1, terete, crowned by a thick subdivided stigma. M. De- 

 candolle thus explains the structure of the fruit, the orange ; 

 first, of a thick, valveless, indehiscent indusium or coat, which is 

 most likely to be considered a continuous torus ; secondly, of 

 several carpels in a whorl, around an imaginary axis, often 

 separable without laceration, membranous, and either containing 

 seeds only, or filled with pulp, lying in innumerable little bags, 

 proceeding from the inner coat of the cells. Seeds situated in 

 the carpels, fixed to their inner angles, numerous or solitary, ex- 

 albuminous, usually pendulous, often inclosing many embryos. 

 Seed-cover usually marked with a raphis and -cup-shaped chalaza. 

 Embryo straight, with a retracted superior radicle, turned to- 

 wards the hilum, and large thick cotyledons, which are auricled 

 at the base, and a conspicuous plumule. This order consists of 

 smooth trees and shrubs of the greatest beauty and utility. 

 The leaves are alternate, articulated above the stem, sometimes 

 compound, with one or many pairs of leaflets, the terminal one 

 always standing on a winged, leafy or dilated petiole, which is 

 furnished with a joint, sometimes simple, with a dilated, jointed 

 petiole, and sometimes reduced to the dilated petiole, the terminal 

 leaflet being abortive. Axillary spines not always present. The 



