498 PENTANDRIA MONOGYNIA. Tpomoea, 
offensive prickles, Leaves scattered, petioled, cordate, point- 
ed, generally entire, though sometimes a little lobed, or angu- 
lar, smooth, about three or four inches long and three broad. 
Petioles round, smooth, length of the leaves, Peduncles 
axillary, smooth, clubbed, length of the petioles or more, from 
two to four-flowered. Fowers remarkably large, the border 
being from four to six inches in diameter, pure white, delight-. 
fully but faintly fragrant, opening at sun-set, and drooping 
at day-light. Tube very long, cylindric. Stigma double, 
Capsules ovate, smooth, two-celled, four-valved. Seeds four, 
viz. two in each cell, smooth, black. 
- Obs, Till L observed Giertner’s figures of the capsule and 
seeds of Ipomoea bona-nox I considered this to be that plant. 
Dr. Konig also thought it was bona-nox and I think he said 
Linnzeus the son had committed a mistake when (in the Sup- 
plemenium Plantarum) he called this plant Convolvulus 
grandifiorus, instead of Ipomoea grandiflora, 
2. 1. salicifolia. R. 
Leaves linear-lanceolate, acuminate. Peduncles one to 
three-flowered, length of the petioles. 
Found by Dr. Buchanan in the district of tear in 
Bengal. In the Botanic garden, at Calcutta it is biennial; Ser: 
ering in the rainy season, = 
Stem and branches twining to a moderate extent, round, 
and smooth, Leaves short-petioled, linear-lanceolate, taper- 
ing from the rounded base into a long, slender, acute point, 
entire, smooth on both sides, from three to eight inches long, 
and scarcely one broad at the broadest part. Peduncles axil- 
lary, solitary, half an inch long, bearing one, two, or three 
large, pure white flowers. Calyx ; leaflets five, ovate, smooth. 
Corol with a cylindric tube of about an inch and a half in 
length, border flat, obscurely divided. Stamina hid in the 
tube of the corol. Stigma of two round aabelis — 
