582 OLACINEÆ. VI. Gerra. VII. PsEUDALEIA, 
umbellate ; branches spinose ; leaves roundish, coriaceous, al- 
most sessile, pubescent. h. S. Native of Hispaniola. Flowers 
small, yellowish ? f 
Fierce-branched Ximenia. Tree? 
Cult. The species of Ximènia thrive well in a mixture of 
loam and peat ; and cuttings will root in sand under a hand- 
glass, in heat. 
VI. GELA (from yeda, gela, the light of the sun, which is 
from yeXew, geleo, to shine; in allusion to the shining leaves). 
Lour. coch. 1. p. 285.—Seélas, Spreng. syst. 2. p. 172. 
Lin. syst. Octdndria, Monogynia. Calyx very short, 4- 
parted. Petals 4, linear, smooth. Stamens 8. Anthers 
roundish. Style 1. Stigma bifid. Drupe 1l-seeded. A little 
tree, with ovate, shining, quite entire, opposite leaves, and small 
yellowish flowers disposed in axillary corymbs. 
1 G. tancrota‘ta (Lour. cochin. 4. p. 285.), h.G. Native 
of Cochin-china. Sélas lanceolatum, Spreng. syst. 2. p. 216. 
Ximénia lanceolata. D. C. prod. 1. p. 533. 
Lanceolate-leaved 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. 
t Genera not sufficiently known, but certainly belonging to 
the present order. 
VII. PSEUDALETA (levdo, pseudo, false, Nara, 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. Hexdndria, Monogynia. Calyx small, nearly 
entire. Petals 3, conniving into a tube. Filaments 6, adnate 
to the petals, hence they appear epipetalous. 
forked at the apex on each side of the petals. 
Style length of corolla. Stigma 3-lobed. Drupe spherical, 
l-seeded. Seeds exalbuminous. Embryo with indistinct fleshy 
cotyledons. From the flowers this shrub appears to be inter- 
mediate between Olax and Heistéria, but the seed is truly 
distinct. 
1 P. Mapagascarir’nsis (D. C. prod. 1. p. 533.) k. S. 
Native of Madagascar. A little branching tree, with alternate 
smooth leaves, and axillary few-flowered peduncles. O‘lax pseu- 
dalèia. 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. 
Capillary threads 
Ovary conical. 
VIII. PSEUDALEIOT DES (in reference to its similarity to 
the foregoing genus). Pet. Th. gen. mad. no. 52. D. C. prod. 1. 
p. 933. 
Lin. syst. Hexdndria, Mgqnogynia. 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. Tuova’rsi (D. C. prod. 1. p. 533.). h. S. Native of 
Madagascar. A weak shrub with alternate leaves and unilateral 
few-flowered racemes. O'lax pseudaleioides, Willd. in Steud. 
nom. Flowers small, and probably white. 
Du Petit Thouars’s Pseudaleioides. Shrub 6 feet. 
Cult. See Pseudaléia for cultivation and propagation. 
+ A genus allied to Olacinee. 
IX. ICACI'NA (this name refers to the similarity of the 
VIII. PSsEUDALEIOIDES. 
IX. Icactnra. AURANTIACE. 
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. Senecare’nsts (Ad. de Juss. 1. c. t. 9.). h. 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 liménum. 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 10 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. 
Orper XXXIX. AURANTIA'CEE (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 estivation 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, €x- 
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 8 
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 
