90 AURANTIACE E. : ATALANTIA. 
although the 5 calycine teeth (not 4, as in all the other species) and struc- 
ture of the drupe evidently declare it to be so. 
" ORDER XXX.—AURANTIACE/E. Corr. 
Calyx urceolate or campanulate, short, 3-5 toothed, withering. Pe- 
tals 3-5, broad at the base, inserted on the outside of an hypogynous 
disk: zstivation slightly imbricative. Stamens equal in number to, or 
a multiple of, the petals, inserted upon the disk: filaments flattened 
below, and there distinct or monadelphons or polyadelphous : anthers 
versatile, bursting inwards. Torus conspicuous, discoid. Ovarium 
plurilocular: style 1: stigma 1, somewhat lobed, thickish. Fruit (an 
orange) consisting of several (or 1, by abortion,) membranaceous car- 
pels, with or without an internal pulp, and surrounded by a thickish in- 
dehiscent rind abounding in glands of volatile oil. Seeds attached to 
the inner angle of the carpels, solitary or numerous, usually pendulous : 
raphe and chalaza usually very conspicuous. Albumen none. Embryo 
straight : radicle next the hilum, partly concealed within the cotyledons : 
cotyledons large, thick, and amygdaline.— Trees or shrubs, every part 
abounding in glands full of volatile oil. Leaves alternate, usually com- 
pound ; leaflets jointed with the petiole, which is often dilated or wing- 
, ed: when apparently simple the leaves are also jointed, showing that 
they are even then pinnate leaves reduced to the terminal leaflet. 
To enable the reader to seize more di pei d the characters we have given of the 
genera of this order, we subjoin an analysis of those having stamina twice as many 
as the petals, and a definite number of ovules in each cell of the ovary. 
O vules solitary, or 2-collateral in each cell. LIMONEÆ. 
Ovary cells as many as the petals : 
Filaments combined. : 1. Atalantia. 
ee — 
tamon Ti LOU SS ut ue or 3 ys S PRA 
Stamens 8-10. 
Style elongated ; arabes 1-2 in each cell). . . 3. Limonia. 
Style short, scarcely distinguishable : (ovules solitary). 4. Glycosmis. 
Ovary cells fewer than the petals : 
Style short, scarcely distinguishable ; ovules 1-2 pendu- E 
lous from the apex ofthe cells. . .  .  . - 5. Selerostylis. 
Style elongated; ovules solitary, peritropal, attached to 
the middle of the axis. $ : i i 2 6. Bergera. 
Ovules in pairs, one above the other. CLAUSENE#. 
Filaments distinct : 
Ovary cells fewer than the petals. : 3 x 7. Murraya. 
Ovary cells as many as the petals ; 
Ovary hirsute; berry full of liquid ; flower-buds angled. 8. Cookia. 
Ovary glabrous; berry dryish ; flower-buds not angled ; 
Stamens 8, dilated part of filaments concave ; petals 
oval. . . wl . S a i : 9. Clausena. 
Stamens 10, filaments flat ; petals linear-lanceolate. Micromelum. 
Filaments (8) combined to the middle; (anthers linear: 
ovarium 2-3-celled: style long: berry 2-3.celled with 
a resinous pulp : calyx tubular: petat 4.) SUNT: 
I. ATALANTIA. Corr. 
Calyx 4-5-toothed. Petals 4-5. Stamens 8-10: filaments combined. be- 
low into a tube, dt and subulate at the apex; anthers cordate-ovate- 
Luvunga- 
