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342 LVII. CONVOLVULACE^E. [For ana. 



wings, horizontally spreading under the fruit. Ovary 1 -celled, with 2 oi 

 4 ovules. Capsule usually 1 -seeded by abortion. 



1. P. paniculata, Eoxb. Cor. PI. t. 235 ; Fl. Ind. i. 464. 



A large twining shrub; branches, panicles and under side of leaves with 

 grey or brownish pubescence. Leaves cordate, acuminate, 2-4 in. Ion 

 petiole less than ^ the length of leaf, basal nerves 5-7. Flowers numerous 

 small, white, on pedicels longer than calyx, in large axillary and terminal 

 drooping panicles ; bracts shortly tomentose. Corolla \ in. long or less. 

 Calyx half the length of corolla, sepals 3-5, enlarged after flowering, into 

 ovate-oblong, membranous, shortly petiolate, reticulate wings, f-1 in. long, 

 surrounding the globose brittle villous capsule, which is about the size of 

 a small pea. 



Bengal, sub-Himalayan tract to the Ganges, ascending to 4500 ft., Burma. 

 Fl. Nov.-Feb.; fr. March, April. 



2. ARGYREIA, Loureiro. 



Large, often woody climbers. Leaves entire, rarely lobed, clothed 

 beneath with silky, often silvery white hairs. Flowers large, in axillary 

 cymes, rarely solitary ; corolla funnel-shaped or campanulate. Ovary 2- 

 celled, with 2 ovules in each cell, or 4-celled by a spurious dissepiment 

 between the ovules ; style filiform, stigma capitate, entire or 2-lobed. 

 Fruit indehiscent, a dry or succulent berry, 2-4-seeded; cotyledons 

 folded. This genus was divided into 2 by Choisy in DC. Prodr. ix. 325, 

 Rivea with a 4-celled and Argyreia with a 2-celled ovary. I follow Ben- 

 tham, Fl. Hongkong. 236, in uniting them. 



Leaves cordate or broad-ovate, breadth equal to the length or nearly 

 so. ,; 



Flowers white, corolla funnel-shaped ; leaves with 5-7 prominent 

 basal nerves, midrib penniveined. 

 Peduncles-l-2-flowered . . . . . . . .1.-4. uniflora. 



Flowers in corymbose or panicled pedunculate cymes . . 2. A. ornata. 

 Flowers rose-coloured or purple, corolla campanulate ; leaves 

 penniveined. 

 Branches and under side of leaves white- tomentose . . . 3. A. speciosa. 

 Branches and under side of leaves hairy. 

 Flowers sessile in compact pedunculate heads with long, lan- 

 ceolate bracts LA. capitata. 



Flowers pedicellate in corymbose cymes with short bracts . 5. A. setosa. 

 Leaves cuneate-oblong, much longer than broad . . . . 6. A. cuneata. 



The geographical distribution in India of several of the species here described 

 is imperfectly known. I have selected those most likely to be met with in the 

 forests of North and Central India. 



1. A. uniflora, Sweet. Syn. Rivea hypocraterif brinis, Choisy -in DC. 

 Prodr. ix. 326. Lettsomia uniflora, Roxb. Fl. Ind. i. 495. 



A woody climber; branchlets and under side of leaves hoary or white 



