Mimosa. POLYANDRIA MONOGYNIA. 005 
Trunk thick in proportion to the age and soil; in the 
above mentioned fifteen years old plant in the Botanic 
garden, it is twenty-four inches in circumference. Bark 
rough, olive-grey, and like most of the genus, astringent. 
Young shoots remarkably long, smooth, slender, and shin- 
ing, and while very young, furrowed, Leaves alternate, 
bipinnate; from six to twelve inches long. Pinne two 
pair. Leaflets three or four pair, oblong-emarginate, lucid, 
entire, from one to three inches long. Petiole common, 
ending in a two-cleft, powerful tendril; all are polished, 
without glands, but channelled. Stipu/es subulate, small, 
embracing the branchlet. Spikes generally from four to 
eight, on a common peduncle, from the axills of the former 
leaves, upon the two or three years old branchlets, and 
there is often more than one. such peduncle in the same 
-axill. Rachis and the minute bracte clothed with ferrugin- 
ous pubescence, Flowers numerous, small, pale yellow. 
Calyx cup-shaped, five-toothed. Corolone-petalled, but — 
divided to very near the base into five lanceolate seg- 
ments. Filaments ten, inserted into the short tube of 
the corol. Anthers two-lobed, with a glandular point be- 
tween them, Germ linear, containing many ovula. _ Style 
the length of the stamina. Stigma simple,but large. Le- 
gumes of an immense size, often several feet in length, and 
_ from four to five inches broad, spirally twisted, surround- 
ed with a thick very firm, polished, entire rim, which, is 
found to remain, like a picture frame, when the less: durable, : 
jointed body of the legume has disappeared ; joints from, 
ten to thirty, one-seeded, ligneous, swelled in the centre 
where the seed is lodged, and more or less transversely 
furrowed, otherwise pretty smooth, and of a greenish ash 
colour when ripe. Seeds sub-ovate, nearly as large as 
-apullet’s egg. Integument single, thick and hard, in fact 
_ @ powerful, polished, shining, chesnut-coloured nut. Peris- 
‘perm none. Embryo straight. Cotyledons equal, conform 
to the seed, amygdaline. . Radicle patelliform, lodged at. 
the umbilicus of the sced. 
Rrr2 
