Nomenclature
Accepted name/Authority/Place of publication:
Merremia cordata R. C. Fang, Fl. Yunnanica 2: 650. 1979.
Description
Habit:
Herbs, twining. Stems striate, glabrescent.
Leaves:
Petiole 3–6 cm, pilose distally; leaf blade cordate, 5–7 × 3.5–5.5 cm, base cordate, margin entire or undulate, apex abruptly acuminate or long acuminate.
Inflorescences:
Inflorescences 3–9-flowered; peduncle 6–16 cm, glabrescent; bracts scale-like, 1–1.5 mm. Pedicel 1–2.5 cm, glabrous.
Flowers:
Sepals nearly equal, ca. 1 cm, margin scarious, glabrous; outer sepals elliptic; inner sepals obovate, emarginate and with mucro. Corolla yellow, funnelform, 3.5–4 cm, with distinct midpetaline bands with a tuft of hairs apically; limb shallowly 5-lobed; lobes triangular. Stamens unequal; filaments papillate pubescent basally. Ovary conical.
Fruits:
Capsule ± globose.
Seeds:
Seeds brown woolly on margin.
References:
Fang R.C., G. Staples, et al. 1995. Convolvulaceae in P. Raven & C.Y. Wu (eds.) Flora of China 16: 271–325.
Biogeography, Ecology and Natural History
Distribution Map:
Distribution:
China (Sichuan, Yunnan). Endemic.
Ecology:
Roadside and riverside thickets;
1400–1800 m.
References:
Fang R.C., G. Staples, et al. 1995. Convolvulaceae in P. Raven & C.Y. Wu (eds.) Flora of China 16: 271–325.
Other information
Common names and uses:
xin ye shan tu gua (Chinese).
General comments:
Merremia cordata differs from M. hungaiensis (Lingelsh. & Borza) R. C. Fang in having cordate leaves, more flowers per inflorescence, and more or less equal sepals.
Authorship for webpage
Editor:
George Staples, Esmond Er
Contributors:
Classification:
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