388 A FLORA OP MANILA 



4. Peduncles very short are nearly wanting, 1- to 3-flowered, the pe- 

 tioles much longer than the inflorescence 3. M. emwrginata 



4. Peduncles elongated, usually many-flowered, the inflorescence equal- 

 ing or longer than the leaves. 

 5. Leaves usually crenate or toothed, often lobed, 2 to 4 cm long. 



4. M. hederaeea 



5. Leaves entire, 4 to 9 cm long 5. M. gemella 



1. Corolla somewhat hairy outside; leaves softly pubescent; flowers in 

 dense, peduncled cymes, white or yellow 6. M. wmbeUata 



1. M. hastata (Desr.) Hallier.f. 



A slender, glabrous, diffuse, branched, annual vine reaching a length of 

 1 to 2 m or more. Leaves sessile or shortly petioled, oblong-lanceolate to 

 narrowly lanceolate,- acuminate, base prominently hastate, 3 to 6 cm long. 

 Peduncles axillary, solitary, long, usually 1-, rarely 2- or 3-flowered. Flow- 

 ers pale-yellowish or nearly white, the center purple, about 1.5 cm long, 

 funnel-shaped. Capsule ovoid or subglobose, 1- or 2-seeded, 5 to 6 mm 

 long, the pericarp thin. 



In open, dry, grass lands, San Pedro Macati etc., fl. Aug.-March; widely 

 distributed in the Philippines, probably introduced. Tropical Asia and 

 Africa through Malaya to Australia. 



2. M. hirta (L.) Merr. (M. caespitosa Hallier f.). 



A slender, twining or creeping, glabrous or slightly hairy annual herb 

 reaching a length of 1 to 2 m. Leaves narrowly oblong to lanceolate, 

 base rounded or obtuse, apex acute, the lower ones often ovate-oblong and 

 subcordate, 2 to 3.5 cm long. Flowers axillary, the peduncles usually 1- or 

 2-flowered. Calyx green, about 5 mm long, the lobes oblong, obtuse. Co- 

 rolla pale-yellow, about 1.5 cm in diameter. Capsule ovoid, about 5 mm 

 long, papery, 1-celled. 



In open wet grass-lands, Novaliches road, fl. Oct.-Dec; widely distri- 

 buted in the Philippines, possibly introduced. India to China, southward 

 to Australia. 



8. M. emarginata (Burm.) Hallier f. 



A slender, prostrate, creeping herb, glabrous pr somewhat hairy, the 

 stems rooting at the nodes, 10 to 80 cm in length. Leaves small, reniform 

 to ovate-cordate, irregularly toothed, 6 to 15 mm long, often wider than 

 long. Flowers 1 to 3 on the very short peduncles. Sepals rounded, about 

 4 mm long, ciliate with few to many white weak hairs. Corolla yellpw, 

 nearly twice as long as the calyx. Capsule globose, about 5 mm in diameter. 



In open dry grass lands, occasional, fl. Nov.-Jan.; of local occurrence in 

 the Philippines, possibly introduced. Tropical Asia and Africa. 



4. M. hederaeea (Burm.) Hallier f. (M. convolvulacea Dennst.). 



A slender, twining, glabrous or nearly glabrous annual, 1 to 3 m in 

 length. Leaves ovate, 2 to 4 cm long, subentire or 3-lobed, crenate or 

 toothed, acuminate, base prominently cordate. Peduncles axillary, about 

 as long as the petioles, with 3 to 5 or more flowers. Calyx green, about 4 

 mm long. Corolla yellow, about 1.6 cm in diameter, the lobes emarginate. 



In open waste places, fl. Sept.-Jan. ; of local pccurrence in the Philippines, 

 possibly introduced. Tropical Asia and Africa. 



