Convolvulus. PENTANDRIA MONOGYNIA, 467 
I take no notice of the stigma when so formed ; it will conse- 
quently be understood ‘to consist of two round lobes, when 
not mentioned, In this genus there is' but one species (C. fla- 
gelliformis,) that can be said to have any thing like an entire 
stigma and in /pomoea only one, viz. I phoenicea, I do not 
drovadars think it would answer any valuable purpose to make 
a double stigma the essential, generic mark of Convolvulus, 
and a single capitate one, that of Ipomoea. But those with 
an entire seed vessel, may be advantageously formed into a 
distinct family, which I have done in the next genus, Lett- 
somia, 
SECT. I. Twining with undivided Leaves. 
1. C. gangeticus. R. = 
Perennial, twining, extensive. Leaves round-cordate, en- 
tire, obtuse. | Peduneles solitary, from one to four-flowered. 
Leaflets of the calyx reniform, increasing in size with the 
capsule, and hiding it, Coro/ with nearly entire margins, 
_ A native of the banks of the Ganges, where it blossoms du- _ 
ring the cool season; when its extended branches, and ‘nu- 
-merous, very large, bright, pink-coloured flowers are biased 
ornamental ; seeds ripe in March, 
Stems shrubby, twining up and over trees toa pa ex- 
tent; young shoots round, pale green, and a little hairy. 
. Leaves petioled, re-entering, round-cordate, entire, often emar- 
ginate, nearly smooth above ; villous, and dotted underneath, 
and there strongly marked with many, nearly simple, paral- 
Jel veins; length and breadth about three or four inches, 
Petioles channelled, nearly as long as the leaves. Peduncles 
axillary, solitary, shorter than the petioles, from one to three- 
flowered. Bractes oblong, opposite, caducous at a very ear- 
ly eriod, Leaflets of the calyx obvolute, reniform, emar- 
ginate, ‘with thin, membranaceous edges, increasing in size 
with the fruit, and covering it completely at all times. Germ 
. 1 wets with one oyulum in each cell, attached to the . 
Dd2 
