88 ?BNTANBRIA MONOCYNIA. IyomOect. 



entire, though sometimes a little lobed, or angular, 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. — Flowers re- 

 markably large, the border being from four to six inches in diame- 

 ter, pure white, delightfully but faintly fragrant, opening at sun set, 

 and drooping at day light. Tube very long, cylindric— Siigma dou- 

 ble. — Capsules ovate, smooth, two-celled, four-valved. — Seeds four, 

 viz. two in each cell, smooth, black. 



Obs. Till 1 observed Gaertner'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 Linneus the son 

 bad committed a mistake when (in the Supplementum Plantarum) 

 he called this plant Convolvulus grandiflorus, instead of Ipomoea 

 grandiflora. 



2. I. salicifolia, R. 



Leaves linear-lanceolate, acuminate. Peduncles one to three- 

 flowered, length of the petioles. 



Found by Dr. Buchanan in the district of Rungpore in Bengal. 

 In the Botanic Garden at Calcutta it is biennial, flowering in the 

 rainy season. 



Stem and branches twining to a moderate extent, round, and 

 smooth — Leaves short-petioled, linear-lanceolate, tapering 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 axillary, solitary, half an 

 inch long, bearing one, two, or three large, pure white flowers. — ■ 

 Calyx i leaflets five, ovate, smooth.— Coro/ 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.— Siigma of two round lobes. 

 —Capsules two-celled, with three seeds in each. 



