168 



12. RIVEA. 



1. Hypochateriformis, Chois. DC. Prod. 9, 326. — Stems 

 twining, pubescent ; leaves rounded-obtuse, cordate, covered on the 

 underside with white hairs; peduncles 1-flowered, sometimes axillary, 

 solitary ; sometimes disposed like a spike at the apex of the 

 branchlets ; sepals ovate-obtuse, unequal, hairy outside ; corolla 

 with a very narrow tube. Bombay and the Concans. Syn. Con- 

 volvulus hypocrateriformis,_ Desv. Encycl. iii, 561; C caudicans, 

 Rcem. and Schult. iv, 302 ; Lettsomia uniflora, Roxb. Fl Ind. i, 495. 



2. BoNANOx, Chois. loc. cit. — Twining ; leaves rounded-cordate, 

 emarginate, sometimes hairy ; peduncles shorter than the petiole, 

 commonly 3-flowered ; sepals ovate, cordate-obtuse; corolla large, 

 pure white, expanding at sunset, perfuming the air with the scent 

 of cloves. Roxb. and Grab. Cat. p 127. To me the fragrance is 

 that of Honeysuckle. Syn. R fragrans, Nimmo ; Lettsomia bona- 

 nox, Roxb. Fl Ind. i, 494; Argyreia bonanox, Sw. 



3. R Ornata, Chois. Conv. p 27, t. 3. — Stem erect, whitish; 

 leaves large, orbicular, cordate or kidney-shaped, smooth above, 

 whitish and tomentose beneath ; peduncles elongated, between 

 spiked and panicled, or umbellate; sepals ovate-lanceolate, villous; 

 tube of white corolla slender, with a flat, spreading limb. The 

 high Ghauts west of Jooneer. 



13. ARGYREIA, Lour. 



1. Speciosa, Sw. Hort. Sub. p 289. — Avery large climber; 

 stem tomentose ; leaves very large, cordate-acute, smooth or nearly 

 so above, covered with white, silky hairs beneath ; peduncles as 

 long as the petioles; flowers somewhat umbellate or capitate; 

 sejjals ovate, very obtuse, tomentose ; corolla 2 inches long, some- 

 what cylindric, pale rose-coloured ; fruit berried, 4-celled ; cells 

 1-seeded. This does not agree with the genus as given by Chois. 

 as the fruit is 4-celled, as in Rivea. Bombay and the Deccan, 

 called " Elephant Creeper." Syn. Convolvulus nervosus, Burm. 

 Ind. 48, i. 20; C speciosus, Linn. Suppl. 137; Ipomsea speciosa, 

 Pers. syn. ; Lettsomia nervosa, Roxb. Fl Ind. i, 4!S8. " Sumoodr. 

 ghok," Mark. 



2. Setosa, Chois. DC. Prod. 9, 332.— Covered with close- 

 pressed hairs ; leaves cordate-ovate, or rounded-acuminate, smooth 

 above, strigose beneath ; peduncles longer than the petioles, rigid ; 

 flowers numerous, corymbose ; bracts reniform, orbiculate-obtuse ; 

 sepals of the same shape ; corolla 1 h inch long, tubular, rather 

 hairy, whitish. Near Viziadroog ; Surat, Law. Syn. Ipomsea 

 ptrigosa, Roth. nov. sp. p. 113; Lettsomia setosa, Roxb. Fl Ind. 

 i, 490 ; Convolvulus strigosus, Spr. syst. i, 600 ; fruit 2-celled. 



