348 ‘DECANDRIA MONOGYNIA. Senna. 
The seeds of this quickly growing, beautiful, stately, 
useful species were. sent to me from Bencoolen by Dr, — 
C. Campbell in the beginning of 1800, and in two years 
the young trees reared from them, were not less than from 
ten to twenty feet high, and stout in proportion. In 
August, 1801, they blossomed for the first time and ripen- 
ed their ssed in April, 1802. Now, 1809, they have grown 
to a very great size for their age, with a trunk thirty-six 
inches in circumference and four feet above ground. 
Trunk straight and covered with smooth, olive-colour- 
ed bark. Branches few, spreading. Leaves numerous, — 
alternate, pinnate, from six inches to a foot long. Leaf- 
lets from four to fourteen pair, opposite, short-petioletted, 
oblong, entire, smooth, polished, of a deep, shining green, 
the exterior pairs largest ; are entire, more or less emat- 
ginate, with a small bristle at the apex ; from two to 
three inches long and from half an inch to an inch broad, 
Petioles smooth and channelled, no glands. Stipules 
minute, subulate, caducous. Panicles terminal, very 
large, erect, ovate, composed of many alternate, corym- 
biform racemes. Flowers numerous, large, bright yellow. 
Bractes lanceolate, concave, one-flowered. Calyx of 
five, unequal, pale yellow, roundish, concave reflexed 
leaflets, about one-third the length of the corol, Corol the 
superior petal small, longer-clawed, and -obcordate ; the 
other four nearly equal, and almost round. Filaments se 
ven fertile ones, but asin the genus, differing much in size; 
the three uppermost barren, and small. Legumes linear, 
thin, swelled a little at the seed, smooth, both margils — 
rounded, of a dark brown, from six to eight inches long. 
Seeds many, thin, oval, of a dark shining brown colour. — 
Dr. Campbell says that it is one of their most usefal 
trees in Sumatra, is of rapid growth, and the wood not 
inferior to Ebony when old. . I may “add that in Bengal 
its growth is also. uncommonly rapid and the tree one of - 
the most beautiful the ean: can boast of. : 
