888 A FLORA OF MANILA 
4. Peduncles very short are nearly wanting, 1- to 3-flowered, the pe- 
tioles much longer than the inflorescence.......... 3. M. emarginata 
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 em long. 
4. M. hederacea 
5. Leaves entire, 4 to 9 cm long...w.... eee. ceeeeeeeeeeneeee ee 5. M. gemella 
1. Corolla somewhat hairy outside; leaves softly pubescent; flowers in 
dense, peduncled cymes, white or yellow..................-..--- 6. M. umbellata 
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. 
3. M. emarginata (Burm.) Hallier f. 
A slender, prostrate, creeping herb, glabrous or 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 yellow, 
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. hederacea (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 1.5 cm in diameter, the lobes emarginate. 
In open waste places, fil. Sept.—Jan.; of local occurrence in the Philippines, 
possibly introduced. Tropical Asia and Africa. 
