390 A FLORA OF MANILA 
8. Leaves entire or shallowly 3-lobed or angled. 
4. Leaves suborbicular, prominently retuse or 2-lobed at the apex. 
6. I. pes-caprae 
4. Leaves ovate to oblong-ovate, acute or acuminate. 
5. Corolla less than 2.5 cm long. 
6. Leaves entire; flowers yellowish-white with a dark-purple 
base, the inflorescence 1- to 3-flowered, glabrous. 
7. I. obscura 
6. Leaves usually shallowly lobed or angled; flowers pink or 
purplish, the sepals ciliate-hirsute........................ 8. I. triloba 
5. Corolla about 5 cm long. 
6. Sepals acute or obtuse; aquatic or swamp herbs, the stems 
often, thick and. spongy-4:2:58).0tis fans. 9. I. reptans 
6. Sepals prominently acuminate; cultivated plants with thick 
tuberous) ,Po0ts...24:04.4125..40 eel aed : 10. I. batatas 
1. I. nz (L.) Roth. 
A twining, rather slender, herbaceous, more or less hirsute annual vine, 
reaching a length of several meters. Leaves prominently 3-lobed, 8 to 15 
cm long, subovate in outline, base cordate. Peduncles axillary, solitary, 
shorter than the petioles, each 1- to 6-flowered. Sepals densely hirsute at 
the base, about 3 cm long, the tips linear. Corolla pale-blue, or the tube 
white within, turning pink-purple, about 5 cm long, the limb shallowly 
5-lobed. Capsule about 1 cm in diameter. (FI. Filip. pl. 66.) 
In open waste places, occasional, fi. all the year; widely distributed in 
the Philippines. A native of tropical America, now in most tropical and 
subtropical countries. 
* 2. IPOMOEA PURPUREA (L.) Lam. Aurora (Sp.-Fil.) ; Morning Glory. 
A slender, twining, herbaceous, somewhat hirsute vine reaching a length 
of several meters. Leaves broadly ovate, entire, acuminate, base cordate, 
5 to12 cm long. Peduncles 1- to 3-flowered. Calyx hirsute with spreading 
hairs, green, about 12 cm long, the lobes oblong. Corolla narrowly campa- 
nulate, 4 to 5 cm long, the tube white tinged with purple, the limb deep- 
purple. Capsule globose, apiculate, about 1 cm long, shorter than the 
persistent, somewhat enlarged sepals. 
Occasionally cultivated, not spontaneous, fl. all the year. A native of 
tropical America, much cultivated in most warm countries. 
8. I. PES-TIGRIDIS L. 
A twining, herbaceous, annual vine, all parts more or less hirsute with 
rather long, spreading, pale or brownish hairs. Leaves 6 to 10 cm in 
diameter, palmately 5- to 9-lobed, suborbicular in outline, base cordate, both 
surfaces somewhat hirsute, the lobes elliptic, acuminate, base narrowed, 
sinuses rounded. Flowers in long-peduncled, axillary heads, the outer 
bracts hairy, oblong, green, up to 8 cm long, -the inner ones smaller. Flowers 
few in each head, usually only one opening at a time. Calyx green, about 
1 em long. Corolla white, 4 cm long, the limb about 3 cm in diameter. 
Fruit globose, 6 to 7 mm in diameter. 
In waste places, fairly common, fl. all the year; throughout the Philip- 
pines, but apparently introduced here. Tropical Africa through India to 
China, Malaya, and Polynesia. 
