BlXlNEAl. 
41 
ORDER XIV. BIXINEiE. 
Calycinc sepals 4—7, either distinct or cohering a t 
the base, with the aestivation imbricated. Petals 5, 
or none. Stamens indefinite, distinct, inserted on 
the circumference of a hypogynous annular disk. 
Ovary superior, sessile, 1 -celled : style 1, undivided 
or 2-4-fid. Fruit capsular or berried, 1 -celled, many- 
seeded. Seeds attached to parietal placentae, enve- 
loped in pulp : embryo erect. 
Tlie Arnotta tribe is composed of trees or shrubs ; with 
leaves simple, alternate, and entire ; stipules deciduous; pedun- 
cles axillary, 1-x -flowered, and bracteolated. They are all 
natives of the hotter parts of America, or of the Mauritius. 
Bixa, is the only genus, possessing any remarkable properties. 
I. Bixa. Arnotta. 
Calycinc sepals 5, orbiculate, deciduous. Petals 
.5, obovate. Stamens co , hypogynous, free : anthers 
bilocular. Ovary one-celled : style 1, long, generally 
ligulato-compressed at the apex. Capsule one-celled, 
two-valved; valves externally setoso-hispid; internally 
with a linear placenta in the centre. Seeds 8-10 to 
each placenta, covered with a coloured farinaceous 
pulp.* 
Low trees, indigenous to the warmer regions of America. 
— Bixa is the name of the common species, on that continent. 
1. Bixa orellana. Heart-leaved Arnotta. 
Leaves on both sides glabrous. 
Sloane, Hist. II. 52. t. 181. f. '2.—Jacq. Hort. Sell. IV. t. 483. 
— Meyer, Primitice FI. Esseq. 202. 
HAB Banks of rivers. 
FL. Autumn. 
A low tree, handsome in its port, with large cordate acumin- 
ate glabrous leaves. Flowers rather large, showy, rose-coloured, 
* Albumen fleshy or very thin: embryo included, curved or nearly straight: 
cotyledons fleshy : radicle turned to the hilum — Garin, de Fruct. I. t. 61. 
