Merremia. } CONVOLVULACE. 729 
sth enlarged and thickened in fruit. Petals 5, connate in a 
exserted; filaments filiform; anthers ee twisted; pollen 
usually with longitudinal folds, never spin Carpels connate 
in a 2-celled or sometimes 4-celled ovary; OV ei 4; style filiform ; 
stigma 2-globose. Fruit a 4-valved capsule, 1-4-locular, some- 
times the style separating with a small stopple. Seeds 4, rarely 
fewer, dull, glabrous, rarely puberulou 
Corolla-tube with badly defined seme between the pes the 
Spaces never marked with dark purple lines ; seeds pubescen 
ds with spreading hairs; capsules globose; corolla Oaeas exter- 
nally except for a few hairs near the apex in bud; cymes — 
subumbellate ; leaves cordate ellata 
Seeds minutely velvety with almost villous margins; Ee ae 
oan shaggy externally; cymes elongated, subracemose; leaves 
acute, base cuneate or truncate, Seely os cordate ......... crispatula, 
Gotta tus with clearly defined interspaces between the bands, the 
Spaces usually marked ee 5 dark purple or violet lines :— 
Buds long, conical, acute :— 
Leaves palmately Sober! an extensive climber vitifolia 
Leaves narrowly oblong ; small herbs :— 
Prostrate sone never twining; peduncles 1-3-flowered; sepals 
acuminate ; leaves sessile, hastate, oblong or subquadrate, — 
bets or '8-toothed tridentata 
es ac 
Peduncles 1-3-flowered ; sepals ovate-acuminate ; leaves sessile, 
hastate-oblong or ale linear, apex gradually tapering 
astat 
Peduncles 3-many-flowered; sepals obtuse; leaves petioled, 
narrow-oblong, base of lower often subcordate, of upper — 
cuneate, apex abruptly acu pitosa 
flowe: 
Leaves glabrous, some usually toothed or 3-lobed ; corolla funnel- 
shaped 
ides 
Leaves acute, ovate-cordate ; peduncles distinct or long, many- 
red :— 
pe 
Leaves sparingly pubescent, all entire; corolla EROS (i wR 
acea, 
Leaves obtuse, small, reniform or ovate-cordate, toothed ; ssdnaeiss 
short or None, few-flowered .......:ss0seeesrersereceesrerseees on emarginata, 
