M a£ 
Ipomeea. } CI. CONVOLVULACER. (C. B. Clarke.) 203 
upwards, purple. Ovary 4-celled. 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. 
SusaENUs 6. Euipomea. 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-celled near the base. Capsule 2-celled, 4—2-seeded, rarely 
l-celled and 1-seeded.— This subgenus is designed to include all the species of 
Ipomea not distinctly referable to any one of the 5 preceding subgenera. 
* Flowers capitate; bracts persistent. 
l7. X. pileata, Roxb. Fl. Ind. i. 504, and ed. Carey & 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 DC. Prodr. ix. 8365; Wight in Calc. Journ. Nat. Hist. viii. 179, 
t. 5, fig. 5, and Ze. t. 1363 ; Dalz. & Gibs. Bomb. Fl. 166. Convolvulus pileatus, 
Spreng. Syst. curae post. 61; Wall. Cat. 1376. 
Assam, BENGAL to TENASSERIM ; ascending to 4000 feet. Deccan PENINSULA and 
EYLON; frequent. 
Stems annual, twining, patently hairy. Leaves 2-3 in. diam., deeply cordate, 
mostly long-petioled. Peduncles 1-4 in. ; outer bracts 1-24 in., entire, produced or 
almost aurieulate at each end ; inner ovate or subspathulate. Sepals elliptic, acute, 
inner narrower, very hairy. Corolla-tube $ by $ in., linear-cylindrie ; mouth 1} in., 
suddenly widened. Capsule 2 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 DC. Prodr. ix. 365) doubts if this 
wid be kept distinet. It differs, however, inter alia, by the corolla-tube } in. 
wide, 
18. I. Wightii, Chois. Convolv. Or. 88, and in DC. Prodr. ix. 364; 
eaves 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. 
Convolvulus Wightii, Wall. Pl. As. Rar. ii. 55, t. 171; Wall. Cat. 
1406. ©. gossypinus, Wall. Cat. 1407. 
Mrs. of the Deccan Pentysuta; Nilgherries, Pulneys, Bababoodan Hills, Wight, 
€.  Ü&vroN ; Central Provinces, alt. 2-3000 ft. . . 
tems twining, fulvous-villous, Leaves 8-4 in. diam., sinuate-denticulate, rarely 
obscurely 3-lobed ; petiole 2 in, Peduncles 2-5 in.; heads 1-2 in. diam., dense, 
fülvous-hirsute ; outer bracts 1 in., inner shorter linear. Sepals j-i in. linear- 
lanceolate, subequal, fulvous-hirsute, scarcely altered in fruit. Corolla 1} ìn., sparsely 
ary without. Capsule 2 in. diam, subglobose, papery. Seeds puberulous.—Z. 
Pilosa has the leaves similarly whitened beneath, but the flowers are not capitate, 
and the capsule not pubescent. 
19. x. bracteata, Wight Ic. t. 1374; hairy, leaves ovate-cordate acute 
entire, heads peduncled, outer bracts ovate-cordate, corolla small narrow-cam- 
panulate purple-pink. 
S. Deccan PENINSULA: Quilon, Wight. . . 
‘ems weak, twining, ‘patently hairy. Leaves 1-2 in. diam., softly thinly hairy 
on both surfaces ; petiole 14 in. Peduncles 4-2} in.; outer bracts i in. deep y 
Cordate; inner smaller, ovate or elliptic, obtuse. Sepals 3 in., spathulate ^ ong, 
‘ner smaller, linear-lanceolate. Corolla 2 in, nearly glabrous without. wens 
Rot seen—The sepals are much more unequal (even at flower-time) than in igat s 
picture ; it might be placed in subgenus Aniseia. When dry it greatly resembles 
ewittia bicolor, 
