Argyreia.] LVII. CONVOLVULACEiE. 343 



silky-tomentose. Leaves broad-cordate, obtuse, emarginate or apiculate, 

 3-6 in. broad, basal nerves 5-7, petiole about as long as leaf. Flowers 

 large, pure white, peduncles 1-3-flowered, pedicels (shorter than peduncles) 

 in the axils of linear, deciduous bracts. Corolla-tube 2-3 in. long, slender, 

 cylindrical, limb 1-2 in. diam. 



Sindh, common on dry hills. Panjab, Central India, South India. Fl. May- 

 Aug. The flowers open at sunset, and close at sunrise. 



A. bona-nox, Sweet. Syn. Lettsomia bona-nox, Koxb. Fl. Ind. i. 494. The 

 Midnapur creeper. A gigantic climber with spongy cracked ash-coloured bark, 

 has larger flowers ; very fragrant. Roxburgh calls it the prince of Convol- 

 vulaceae. Bengal (Serampur, Midnapur), Guzerat, the Konkan. Fl. R.S. 



2. A. ornata, Sweet. Syn. Rivea ornata, Choisy ; DC. Prodr. ix. 

 326 j Wight Ic. t. 1356. Lettsomia ornata, Eoxb. Fl. Ind. i. 496. 



Differs from A. unifiora mainly by having the flowers in large spreading 

 corymbose or panicled pedunculate cymes, peduncle generally longer than 

 petiole. This, as well as the preceding species, demand critical study on 

 the spot. 



Oadh forests, Nepal, Panjab (Aitchison), and probably widely spread in 

 North-West India. Ceylon. Fl. R.S. 



3. A. speciosa, Sweet; DC. Prodr. 328. Syn. Ipomcea speciosa, 

 Bot. Mag. t. 2446. Lettsomia nervosa, Eoxb. Fl. Ind. i. 488. The Ele- 

 phant Creeper. 



A large woody climber running up the highest trees. Branches and 

 under side of leaves white with a dense tomentum of soft silky hairs. 

 Leaves cordate, acuminate, penniveined, 4-12 in. long, and nearly as broad, 

 petiole shorter than leaf or nearly as long ; main lateral nerves numerous, 

 prominent, parallel. Flowers deep rose-coloured in axillary corymbose 

 cymes, peduncles longer than petiole, and sometimes longer than leaf, 

 pedicels as long as calyx ; bracts large, foliaceous, ovate, acuminate, 

 deciduous. Corolla campanulate, tube 1J in. long, limb 2 in. diam. 



South India, Bengal, North-West India (Dehra Doon, Voigt. Hort. Suburb. 

 351). Fl. R.S. 



4. A. capitata, Choisy ; DC. Prodr. ix. 332. Syn. Lettsomia strigosa, 

 Roxb. Fl. Ind. i. 491. 



A large woody climber ; branchlets, inflorescence and leaves strigose 

 with long harsh brown hairs. Leaves ovate from a cordate base, acumi- 

 nate, penniveined, blade 3-5 in. long. Flowers rose-coloured or lilac, ses- 

 sile in pedunculate bracteate heads, supported by numerous ovate bracts, 

 with long rust- coloured hairs, peduncles longer than petioles. Corolla 

 campanulate. 



Eastern Bengal, Burma. Fl. Oct., Nov. A. barbigera, Choisy syn. Con- 

 volvulus barbiger, Wall., is closely allied, if specifically distinct. Burma. Java. 

 Eastern Bengal. N.W. Himalaya. 



