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FOC | Family List | FOC Vol. 12 | Sterculiaceae | Byttneria

1. Byttneria pilosa Roxburgh, Fl. Ind. 2: 381. 1824.

粗毛刺果藤 cu mao ci guo teng

Byttneria elegans Ridley; B. pilosa var. pellita Gagnepain.

Woody climbing lianas. Branchlets dark brown when dry, stellate hairy, glabrescent. Stipules linear, ca. 14 mm, caducous; petiole 12-15 cm, hairy; leaf blade orbicular or cordate, usually 3-5-lobed, 14-24 × 13-21 cm, both surfaces yellowish brown stellate puberulent and hirsute, denser abaxially, basal veins 7, base cordate, margin serrulate, apex obtuse or acute. Inflorescence a flat-topped cyme, axillary, few-flowered. Pedicels slender, ca. 2.5 mm. Sepals ca. 3 mm, abaxially hairy, adaxially glabrous. Petals 4-lobed, lobes obtuse. Staminodes partly connate, ca. 1.5 cm. Ovary globose, verrucose. Capsule yellowish pink, globose, ca. 2 cm in diam., densely spiny, spines branched and soft, 4-6 mm. Seed yellow with brown mottling, ovoid, ca. 5 mm.

Mixed forest margins; 500-1000 m. S Yunnan [Bangladesh, India, Indonesia, Laos, Malaysia, Myanmar, Thailand, Vietnam].


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