Morus. MONOECIA TETRANDRIA, - §95 
2. M. atropurpurea, R. 
Leaves cordate, very rarely lobate, serrate, smooth, Ament 
cylindric. Fruit cylindric, dark purple. 
M. rubra, Lourier, Cochin Ch. 679. 
From China this large species was introduced into the Bo- 
tanic garden at Calcutta, where it thrives luxuriantly, blos- 
soms about the beginning of the hot season, in February, and 
the fruit ripens in March and April. 
Attempts have been made to feed the silk-worm in Bengal 
with its leaves; but, so far as I can learn, with little or no 
success, 
_ Trunk rarely more than a few feet in height, and in our 
young trees in Bengal from eighteen to twenty-four inches in 
circumference. Bark ash-coloured, and rather scabrous. 
Branches and branchlets nearly erect, long, simple, and pret- 
ty stout, bark of the old ligneous parts like that of the trunk ; 
that on the younger branches more smooth, and lighter co- 
loured ; the general height of our largest trees about twen- 
ty feet. Leaves alternate, cordate, serrate, acuminate, smooth, 
three-nerved, with a gland on the base of the lateral nerves, 
about six inches long, by five broad, caducous during the 
cool season; and the new foliage begins to appear with the 
flowers in February. Petioles nearly round, smooth, an inch 
and a halflong. Stipules ensiform, chaffy, caducous. Aments 
axillary, and below the first leaves of the tender shoots, pe- 
duncled, generally drooping. The male flowers on one tree 
and the female ones on another, though sometimes they are 
monoecous, or polygamous, Mae. ments cylindric, 
drooping. Corollets pedicelled. Calyx four-leaved, or deep- 
ly four-parted. Coro! none. Filaments four, more than twice 
the length of the calyx. Anthers oval. Germ none, but a 
small conic gland in its place. FEMALE. Aments cylindric, 
drooping. Corollets sessile. Calyx four-leaved. Leaflets 
obovate, appressed to the germ. Corol none. Stamina none. 
Germ oval, one-celled, containing one ovulum attached to the 
top of the cell. Styles two, revolute, villous; rather united at 
swe : 
