Indigofera. DIADELPHIA DECANDRIA. 381 
19. I. arborea, Roxb. 
Arboreous. Leaves pinnate; /eafleis from six to nine 
pair, oval, emarginate. Racemes the length of the leaves, 
Wings expanded, Legume fluted, straight, smooth, 
This stately species was reared in the Botanic garden from 
seed sent from the Shreenagur mountains by Captain Hard- 
wicke in 1796. Time of flowering, at Calcutta, the month of 
March. 
Trunk erect, in twelve years as thick asa man’s lee, Bark 
dark brown. Branches numerous, spreading in every direc- 
tion; young shoots somewhat scabrous, height of the whole 
plant, when twelve years old, about twelve feet. Leaves al- 
ternate, pinnate, about four inches long. Leaflets from six to 
nine pair, oval, emarginate, somewhat scabrous with very 
short hairs. Stipules subulate, Racemes axillary, solitary, 
nearly the length of the leaves. Flowers solitary, short-pe- 
dicelled, large, and of a very beautiful, bright, reddish-violet 
colour. Legumes linear, smooth, reflexed, sharp pointed, con- 
taining from six to twelve seeds. 
© 
20. I. atropurpurea. Buch, 
Shrubby, erect. Leaves pinnate; leaflets from six to eight 
pairs, oval, smooth, Racemes when in flower, as long as the 
_ leaves in seed twice their length. Legumes cylindric, straight, 
reflexed, from eight to nine-seeded. 
_ A native of Nepal, from thence introduced by Dr. Buch- 
anan, into the garden in 1802, and in about eight months the 
plants they produced were from three to five feet high, with 
_ a simple, shrubby, straight stem and few branches, with 
young tender parts somewhat villous. : 
Leaves pinnate, from six to twelve inches long. Lents 
opposite, from six to eight pair, short-petioled, oval, entire, 
smooth on both sides, an inch and a half long, by one inch 
broad. Stipules subulate; those of the petioles caducous ; ‘ 
those of the leaflets, for eich pair has a pair or more, perma- 
nent. Racemes axillary, by the time all the flowers have 
