IpomcBa.] CI. CONVOLVULACEJ!. (0. B. Clarke.) 20S 



Tip-wards, purple. Ovcm/ 4-eelled. Capsule 4-celled, or by suppression 3-1-celled. — 

 The Sweet Potato ; though that term is given to yams in Bengal. Said to fruit, 

 rarely. 



SuBeBNTTS 6. Euipoxnsea. Sepals subequal, or the outer somewhat 

 larger, especially in fruit. Corolla funnel-shaped or campanulate, glabrous- 

 •without or very nearly so. Stamens included. Ovary 2-celled, 4-ovuled, 

 rarely imperfectly 4-ceUed near the base. Capsule 2-celled, 4r-2-seeded, rarely 

 1-celled and 1-seeded. — This subgenus is designed to include all the species of 

 Ipomeea not distinctly referable to any one of the 5 preceding subgenera. 



* Flowers capitate ; bracts persistent. 



17. X. pileata, Moxb. Fl. Ind. i. 504, and ed, Carey Sr Wall ii. 94 ; 

 sparsely hairy, leaves ovate-cordate acute entire, heads many-fld. enclosed by 

 a large boat-shaped bract, corolla tubular-funnel-shaped pink. Chois. Convolv. 

 Or. 74, and in ^C Prodr. ix. 365 ; Wight in Cole. Journ. Nat. Hist. viii. 179, 

 t. 5, fig. 5, and Ic. t. 1363 ; Bala. 8/- Oibs. Bomb. Fl. 166. Convolvulus pUeatus,. 

 Spreng. Syst. curae post. 61 ; Wall. Cat. 1376. 



Assam, Benqai, to Tbnasseeim: ; ascending to 4000 feet. Deccan Peninsula and 

 Cetlon; frequent. 



Stems annual, twining, patently hairy. Leaves 2-3 in. diam., deeply cordate, 

 mostly long-petioied. Peduncles 1-4 in. ; outer bracts 1-2 J in., entire, produced or- 

 almost auriculate at each end ; inner ovate or subspathulate. Sepals elliptic, acute, 

 inner narrower, very hairy. CbroKo-iMie | by jj in., linear-cylindric ; mouth IJ in.,, 

 suddenly widened. Caps^Ue ^ in., subglobose, papery. Seeds smooth. — Easily known 

 by its boat-shaped outer bract. J. involucrata, Beauv. Fl. Owar. et Ben. ii. 52, t. 89, 

 of W. Africa has a similar bract, and Choisy (in DO. Prodr. ix. 365) doubts if this, 

 can be kept distinct. It differs, however, inter alia, bj- the corolla-tube J in. 

 wide. 



18. Z. Wig'litil, Chois. Convolv. Or. 88, and in DC. Prodr. ix. 364; 

 leaves ovate-cordate acute entire angular or sublobate softly villous above 

 ■white-woolly beneath, heads long-peduncled, outer bracts lanceolate acuminate,, 

 corolla middle-sized pink-purple, capsule minutely pubescent. Wight Ic. t. 

 1364. Convolvulus Wightii, Wall. PI. As. Par. ii. 55, t. 171 ; Watt. Cat. 

 1406. C. gossypinus, Watt. Cat. 1407. 



Mts. of the Dbccan Peninsula ; Nilgherries, Pulneys, Bababoodan Hills, Wight, 

 &c. Cbylon ; Central Provinces, alt. 2-3000 ft. 



Stems twining, fulvous-villous. Leaves S-4 in. diam., sinuate-denticulate, rarely 

 obscurely 3-lobed ; petiole 2 in. Peduncles 2-5 in. ; heads 1-2 in. diam., dense, 

 fulvous-hirsute ; outer bracts 1 in., inner shorter linear. Sepals ^J in., linear- 

 lanceolate, subequal, fulvous-hirsute, scarcely altered in fruit. Corolla l\ in., sparsely 

 hairy without. Capsule \ in. diam., subglobose, papery. Seeds puberulous. — /.. 

 pilosa has the leaves similarly whitened beneath, but the flowers are not capitate, 

 and the capsule not pubescent. 



19. I. bracteata, Wight Ic. 1. 1374 ; hairy, leaves ovate-cordate acute 

 entire, heads peduncled, outer bracts ovate-cordate, coroUa small narrow-cam- 

 panulate purple-pink. 



S. Deccan Peninsula ; Quilon, Wiight. 



Stems weak, twining, patently hairy. Leaves 1-2 in. diam., softly thinly hairy 

 on both surfaces ; petiole l^ in. Peduncles ^-2^ in. ; outer bracts | in., deeply 

 cordate ; inner sm^er, ovate or elliptic, obtuse. Sepals J in., spathulate-oblong, 

 inner smaller, linear-lanceolate. Corolla f in., nearly glabrous without. Capsule- 

 not seen — The sepals are much more unequal (even at flower-time) than in Wight's 

 picture ; it might be placed in subgenus Aniseia. When dry it greatly resembles 

 Hemttia bicolor. 



