472 • PENTANDRTA MONOGYNTA. Convolvulus. 



cordate ; entire, acute ; lobes large, and rounded, a few dis- 

 tinct hairs on the nerves and veins; from three to six inches 

 long-, and from two to four broad. Petioles hairy, slightly 

 channelled, shorter than the leaves. Peduncles axillary, so- 

 litary, about as long' as the petioles, bearing two, or three al- 

 ternate, pedicelled, rather small, pure white flowers ; after the 

 flowers drop, the pedicels become drooping-. Bractes cordate, 

 a few scattered over the peduncles, and .pedicels. Calyx, 

 leaflets as long as the tube, ciliate; the exterior sagittate. Fi- 

 laments smooth. Germ on a nectarial pedicel. Stigma of two 

 round lobes. 



10. C. obscurus. Willd. sp. pi. i. 852. 



Annual, filiform, sometimes villous. Leaves exactly cor- 

 date, entire. Peduncles jointed, clavate beyond the joint, af- 

 ter the flower decays this part droops ; one-flowered, lobes of 

 the corol emarginate. Seeds downy. 



A native of various parts of India, blossoming in Bengal 

 during the rainy and cool seasons. 



Obs. In Dillenius's figure of C. obscurus, which is the on- 

 ly species I can compare this plant to, the lobes of the corol 

 are acute ; here they are emarginate, hence I conclude they are 

 different. In the Banksian herbarium either this or one much 

 like it is named C.Jitnicularis. 



11. C. spcehorocephalns. R. 



Annual, twining, villous. Leaves cordate-sagittate ; lobes 

 rounded. Flowers numerous, sessile, on sub-sessile, round, 

 axillary heads. 



A native of the interior parts of Bengal. Flowering time 

 from the close of the rains in October till January. 



Root annual. Stem and branches twining, round ; young 

 shoots clothed with short soft hairs. Leaves sagittate-cordate, 

 posterior lobes large, and rounded, both the sides and mar- 

 gins somewhat hairy ; length from one to four inches. Pe- 

 tioles hairy, channelled, about half as long as the leaves. Pe- 



