378 DIADELPHIA DECANDRIA, Indigofera. 
tivated in a good soil it is often five or six feet high, Branches 
many, nearly erect, scattered, striated from the insertion of the 
leaves, three small ridges running down from each ; entirely 
covered with great numbers of short, depressed, white hairs, 
which make the plants quite hoary ; these may be easily rub- 
bed off, leaving the branches, &c. smooth, clear and green. 
Leaves alternate, somewhat bifarious, numerous, approximat- 
ed, pinnate with an odd one; about four inches long. Leaf- 
lets short-petioled, opposite, from three to five pairs, pale 
green, fleshy, the lower smallest, all obcordate, slightly emar- 
ginate with a minute bristle, above pretty smooth, but pale 
coloured ; many short depressed white hairs cover the under 
side, which make it still of a fainter green than the upper 
side, but nothing like down on any parts of the plant, from one 
to two inches long, and about three quarters broad. Petioles 
covered with the same small, depressed, white hairs, channel- 
led. Stipules awled, small. Racemes axillary, sessile, erect, 
shorter than the leaves, many-flowered. lowers numerous, 
small, yellow and red, Calyzx ; divisions short, acute, equal. 
Banner and keel hairy ; of a greenish-yellow, margins of the 
former involute. Wings of a pale rose colour, linear-oblong, 
processes of the keel remarkably large. Legumes numerous, 
reflexed, falcate, round, short, covered with the same hairs 
as the branches, and contracted. a little between the seeds. 
Seeds generally three, smooth, like those of I, tinctorea. 
This species comes near to Indigofera argentea, Linn, the 
chief differences are, that in this plant there is a total want of 
down ; the leaves are never ternate, but always composed of 
from three to five pair of leaflets, with a larger single termi- 
nal one; and the legumes are very numerous on the same 
racemes, aa 
From the leaves of this plant 1 have often extracted a 
most beautiful, light Indigo ; more so than I ever could from 
the common Indigo plant, or even from Werium tinctorium, 
‘and in a large proportion, After an enquiry of nearly two 
years, I have not been able to discover that the natives of any 
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