390 A FLORA OP MANILA 



3. Leaves entire or shallowly 3-lobed or angled. 

 4. Leaves suborbicular, prominently retuse or 2-lobed at the apex. 



6. /. pea-caprae 

 4. Leaves ovate to oblong-ovate, acute or acuminate. 

 6. 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. /. ohBcwra 

 6. Leaves usually shallowly lobed or angled; flowers pink or 



purplish, the sepals ciliate-hirsute 8. I. triloha 



6. Corolla about 6 cm long. 

 6. Sepals acute or obtuse; aquatic or swamp herbs, the stems 



often thick and spongy 9. /. reptana 



6. Sepals prominently acuminate; cultivated plants with thick 



tuberous roots 10. /. baiMvM 



) 

 1. I. NIL (L.) Roth. 



A twining, rather slender, herbaceous, more or less hirsute annual vine, 

 reaching a length of several meters. Leaves prominently 8-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 6 cm long, the limb shallowly 

 6-lob.ed. Capsule about 1 cm in diameter. (Fl. Filip. pi. 66.) 



In open waste places, occasional, fl. 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 to 12 cm long. Peduncles 1- to 8-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. 



3. I. FES-TIGRIDIS L. 



A twining, herbaceous, annual vine, all parts more or less hirsute with 

 rather long, spreading, pale «r brownish hairs. Leaves 6 to 10 cm in 

 diameter, palmately 6- to 9-lobed, suborbicular in outline, base cordate, both 

 surfaces somewhat hirsute, the lobes elliptic, acuminate, base narrowed, 

 sinuses rounded. Flowers- in longrpeduncled, axillary heads, the outer 

 bracts hairy, oblong, green, up to .3 cm long, the inner ones smaller. Flowers 

 few in each head, usually only one opening at a time. Calyx green, about 

 1 cm 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; thrpughout the Philip- 

 pines, but apparently introduced here. Tropical Africa through India to 

 China, Malaya, and Polynesia. 



