96 
PLANTS INDIGENOUS TO 
[Awantiacece. 
V.-BUTIN JE. 
Plowers generally symmetrical. Stamens definite. Ovary one compound or 
several. Placentae axil. Seeds more frequently with scanty or no albumen then 
copiously albuminous. Embryo almost always straight. 
Obdeb ATTRANTIACEAh 
Correa, Annal. Mus . vi. 376. 
Flowers symmetrical. Calyx 3-5-cleft, often persistent. Petals 3-5, sessile, as 
well as the lobes of tlie calyx imbricate, rarely valvate in aestivation, distinct or 
somewhat coherent, inserted on the outer side of a hypogynous disk, deciduous, in 
rare instances wanting. Stamens definite in number, free or connate. Anthers two- 
celled, with longitudinal introrse dehiscence. Style 1, simple, rarely divided. Cells 
of the ovary 2 or several. Ovules 1, 2 or more in each cell, anatropal or ampkitropal. 
Fruit consolidated , generally pulpy. Seeds pendulous or horizontal, frequently des¬ 
titute of albumen. Embryo straight. Cotyledons often thick, fleshy. Radicle very 
short, superior. Plumule developed. 
Trees or shrubs, dotted with oil-glands, not rarely thorny, hardly ever scandent, 
some extending considerably beyond the tropics, almost exclusively restricted to the 
eastern hemisphere, particularly numerous in the warmer parts of Asia. Leaves 
alternate, much less frequently opposite, pinnate or reduced to a single leaflet. Sti¬ 
pules none. Flowers hermaphrodite, seldom unisexual, variously distributed, often 
fragrant. Petals white, or more or less tinged with red, sometimes yellow. Fruit 
often with an aromatic-oily rind and a juicy pulp.—AWL Gen. 1043; Li mil Veg. 
Kmgd. ed. iii. 457; Rcemer, Synops. Monograph. 28-75. 
The transit from Aurantiacese to Rutaceae is rendered perfect through Xantho- 
xyleae, which differ in prevailingly declinous flowers, in free or coalescent styles, an 
apocarpic fruit and often largely developed albumen. 
In Australia exist plants of this order only in the eastern tracts, along which 
they occur in species of Citrus, Triphasia, Micromelum, Murraya, Acronychia, and 
perhaps Glycosmis, Cookia and other genera. 
ACEONYCHIA. 
Forst. Char. Gen. t. 27. 
Flowers bisexual. Calyx short, four-cleft. Petals 4, valvate in aestivation, distinct. Stamens 8, 
free, all fertile. Style simple. Stigma undivided or four-lobed. Ovary sessile, four-celled. Ovules 2 
m each cell, amphitropal, inserted below the apex of the cell. Berry fleshy, four-celled. Endocarp 
