#9 "FESTANDIUA MOKOCTNIA. Con'ohulus, 



Jpomoea, the stigma consists of two globular heads ; each globe an 

 aggregate of minute, roundish, pellucid, glutinous tubercles. In 

 the specific character, therefore I take no notice of the stigma when 

 so formed ; it will consequently be understood to consist of two round 

 lobes, when not mentioned. In this genus there is but one species 

 (C.Jlage/liformis,) that can be said to have any thing like an entire 

 stigma and in Ipomoea only one, viz. I. pftoenicea. I do not there- 

 fore think it would answer any valuable purpose to make a double 

 stigma the essential, generic mark of Convolvulus, and a single capi- 

 tate one, that of Ipomoea. But those with an eutire seed vessel, may 

 be advantageously formed into a distinct family, which I have done 

 in the next genus, Lettsomia. 



Sect. 1st. Tzcining with undivided haves. 



1. C. gangeticusj R. 



Perennial, twining, extensive. leaves round-cordate, entire, ob- 

 tuse. Peduncles solitary, from one to four-flowered. Leaflets of 

 the calyx reniform, increasing in size with the capsule, and hiding it. 

 Carol with nearly entire margins. 



A native of the banks of the Ganges, where it blossoms during the 

 cool season ; when its extended branches, and numerous, very large, 

 bright, pink-coloured flowers are highly ornamental ; seeds ripe in 

 March. 



Stems shrubby, twining up and over trees to a great extent ; young 

 shoots round, pale green, and a little hairy. — Leaves petioled, re-en- 

 tering, round-cordate, entire, often emarginate, nearly smooth above ~ 

 villous, and dotted underneath and there strongly marked with ma- 

 ny, nearly simple, parallel veins ; length and breadth ahout three or 



four inches Petioles channelled, nearly as long as the leaves.— 



Fed uncles axillary, solitary, shorter than the petioles, from one to 

 three-flowered. — Bractes oblong, opposite, caducous at a very ear* 



