420 NATURAL HISTORY OF PLANTS. 
from tropical Asia and Oceania, have the trifoliolate leaves of Pécro- 
dendron, or compound-pinnate ones; but the flowers are diplos- 
temonous, and the drupaceous fruit contains in each stone a seed 
with conduplicate cotyledons. 
Trvingia, consisting of shrubs (not bitter) from tropical Western 
Africa (and which may certainly be attributed to this group), has, 
on the contrary, simple leaves, accompanied by axillary stipules, 
diplostemonous flowers, whose ovary only contains one descending 
ovule in each cell, and the drupaceous fruit presents a hard stone, 
with a single seed, the embryo being sometimes albuminous, some- 
In Soulamea (figs. 491, 492), consisting of very 
bitter trees from the Moluccas, New Ca- 
ledonia, and the neighbouring islands, 
the leaves are simple or compound- 
pinnate, and the polygamous, trimerous, 
diplostemonous flowers have à two- 
celled uniovulate ovary. The coriaceous, 
indehiscent, compressed fruit, edged by 
a more or less developed wing, contains 
one or two seeds, with scanty albumen. 
Amaroria, hitherto incompletely known, seems to represent a lessened 
type of the preceding genus, as with a floral organization analogous 
to that of Sowlamea, it only possesses one unsymmetrical one-celled 
biovulate ovary, to which succeeds a dry, nut-shaped fruit, whose 
bony stone contains a single seed. Awberlinia, consisting of Mexican 
subaphyllous shrubs, is attached to this series. It has tetramerous 
and diplostemonous flowers, but it is separated from all the pre- 
ceding genera by the indefinite number of ovules, bi-seriate in 
each cell.' 
times exalbuminous. 
Soulamea amara. 

Fie. 491. 
Fruit. 
Fie. 492, 
Long. sect. of fruit. 
1 Brunellia las been aseribed to this group. 
(R. & Pav., Prodr., 71, t. 12.—K., in Ann. Se. 
Nat., sér. 1, ii. 361.—DC., Prodr., ii. 87.— 
Enpu., Gen. n. 5971.—B. H., Gen., 313, n. 
21). But MM. Trrana & PLANCHON (in 
Ann. Sc. Nat., sér. 5, xiv. 307) say it appeared 
to them “by its general features to more nearly 
approach the Saxifrage-Weinmannice.” The 
flowers are polygamous, dicecious, and apetalous. 
They have a slightly concave receptacle lined 
with a bristling disk cut upon the edges into as 
many double lobes as there are sepals—viz., from 
four to six, and sometimes more. The calyx is 
valvate. ‘The slightly perigynous stamens are 
double in number to the sepals, some opposite, 
others alternate, sterile in the female flowers. 
The carpels, rudimentary in the male flowers, 
are inserted at the bottom of the receptacle 
alternately with the sepals, free, each formed of 
a one-celled ovary containing two descending 
ovules with superior and exterior micropyle, and 
tapering above into a subulate style. The fruit 
is formed of one or several bivalve capsules with 
cartilaginous endocarp separating from the 
exocarp, and contains one or two seeds, with 
linear hilum and flesby albumen surrounding 
an embryo with oval flat cotyledons and superior 
radicle. Brunellia consists of trees, not bitter, 
often tomentose or covered with prickles, with 
opposite or verticillate stipulate leaves, simple 
