184 ci. CONVOLVULACE.E. (C, B. Clarke,) \_Eivea. 



2. R. hypocrateriformis. Chois. Convolv. Or. 26, and in DC. Prodr, 

 ix. 326 ; leaves orbicular-cordate adpressedly silky beneath when young, sepals 

 ^ in. ovate-elliptic obtuse, corolla-limb glabrous or puberulous without. Dak, 

 # Gibs. Bomb. FL 168 ; Miq. Fl. 2nd. Bat. ii. 584, only copied. R. bona-nox, 

 Roxb. Hort. Seng. 13; Chois. Convolv. Or. 27, and in DC. Prodr. ix. 326: 

 Dalz. Sf Gibs. Bomb. Fl. 168. R. fragrans, Nimmo in Grah. Cat. PL Bomb. 

 127. R. ornata, Aitch. Cat. Punjab PI. 100, not of Chois. Convolvulus hypo- 

 crateriformis, Lamk. Enc. iii. 561. 0. candicans^ Wall. Cat. 1368 ; Eoem. fy 

 Sch. Syst. iv. 302, not of Roth. Lettsomia uniflora, Roxb. Cat. PL (1813) and 

 FL 2nd. i. 495, and ed. Carey $ Wall. ii. .85. L. bona-nox, Roxb. Hort. Beng. 

 13, and Fl. 2nd. i. 494. Argyreia uniflora and bona-nox, Sweet Hort. Brit. ed. 

 2, 373 ; Brand. For. Fl. 343. 



WESTERN INDIA ; in dry forests, from Lahore and Behar to Mysore, common. 

 ASSAM, Griffith. 



Generally resembling R. ornata, but the hair on the stems beneath the leaves and' 

 on the sepals is less copious, and much less white. The essential distinction lies in 

 the sepals which are smaller and more obtuse. Roxburgh's Lettsomia bona-nox, a 

 native of Midnapore jungles, is referred to here with little doubt, though no specimens of 

 it are known to exist ; the only difference his characters afford between hi si. bona-nox 

 and his L. uniflora (JRivea hypocrateriformis) are, that the former has deliciously clove- 

 scented flowers and three of them together, the latter solitary flowers, whether 

 scented or no is not stated. Roxburgh's figure is excellent. 



3. ARGYREZA,Zw/r, 



Scandent, rarely suberect, shrubs. Leaves from cordate-ovate to narrow- 

 lanceolate, silky hirsute or pubescent. Cymes sessile or peduncled, capitate or 

 corymbose. Flowers showy, purple or rose, rarely white. Sepals from orbicular 

 to lanceolate, subequal, or the inner smaller, adpressed to the fruit, often some- 

 what enlarged. Corolla funnel-shaped; limb plaited, very shortly lobed. 

 Stamens included ; anthers oblong, never twisting. Ovary completely 4-celled, 

 4-ovuled ; disc annular, often prominent, as long as the ovary ; style filiform, 

 stigmas 2 sessile globose. Fruit indehiscent, baccate or nearly dry, hard or 

 papery, 4-1 -seeded. Species 30, Indian, Malayan, and S. Chinese, one African. 



SECT. I. Fomifera. Sepals orbicular, ultimately enlarged, completely 

 enveloping the fruit, strongly imbricate, glabrous, mucilaginous. 



1. A. tilisefolia, Wight Ic. t. 1358; leaves ovate-cordate shortly acumi- 

 nate or obtuse hoary beneath or glabrescent, peduncles 1-3-fld. shorter than 

 the petioles, corolla-plaits glabrous without or nearly so. Kurz For. FL ii. 

 215. Convolvolus tilisefolius, Lamk. Enc. iii. 544. C. gangeticus, Roxb. Hort. 

 Beng. 13, and Fl. 2nd. i. 467, and ed. Carey $ Wall. ii. 46 ; Wall. Cat. 1340. 

 C. melanostictus, Schldl. in Linncea, 1831, 737. Ipornrea tiliefolia, Roem. 8f 

 Sch. Syst. iv. 229. I. gangetica, Siveet Hort. Brit. ed. 2, 371. I. melanosticta, 

 G. Don Gen. Syst. iv. 271. Rivea tilisefolia, Chois. Convolv. Or. 25, and in 

 DC. Prodr. ix. 325 ; Hassk. Retzia, i. 68. 



INDIA, alt. 0-1000 ft., except in the western dry portion, very common in Bengal 

 and near the sea. DISTEIB. Malaya to the Philippines; elsewhere often cultivated. 



Scandent or twining, often forming low, dense masses with apple-like fruits. 

 Leaves 1-4 in. diam. ; petiole long. Peduncles J-3 in. ; bracts inconspicuous, 

 caducous. Corolla 2-3 in., widely-funnel-shaped, rose-purple. Fruit f-1*- in. diam., 

 including the sepals ; capsule thin. Seeds ^ in., minutely rusty-villous, hilum hirsute. 

 Miquel (Fl. Ind. Bat. ii. 587) says Ipomaea lilacina (Blume Bijd. 716) is this 

 plant, but the description does not agree (" sepals acute," &c.). 



