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FOC | Family List | FOC Vol. 12 | Tiliaceae | Burretiodendron

1. Burretiodendron esquirolii (H. Léveillé) Rehder, J. Arnold Arbor. 17: 48. 1936.

柄翅果 bing chi guo

Pentace esquirolii H. Léveillé, Repert. Spec. Nov. Regni Veg. 10: 147. 1911; Burretiodendron longistipitatum R. H. Miao; Eriolaena esquirolii H. Léveillé.

Trees deciduous, to 20 m tall. Branchlets gray-brown, stellate pubescent. Petiole 2-4 cm; leaf blade elliptic, broadly elliptic, or broadly obovate, 9-14 × 6-9 cm, papery, stellate puberulent abaxially, stellate puberulent adaxially, densely gray-brown, basal veins 5-7, 4 lateral veins with 4-5 secondary veins, base obliquely cordate, margin denticulate, apex acute. Cymes 3-flowered, as long as petiole. Bracts 2, ovate, ca. 7 mm, hairy. Male flowers pedicellate, ca. 2 cm in diam. Sepals oblong, ca. 1 × 0.4 cm, stellate tomentose abaxially, glandular at base adaxially, glands as long as 1/3 sepals. Petals broadly obovate, ca. 11 × 7 mm, base with 3-4 mm claw, apex nearly truncate. Stamens ca. 30, ca. 7 mm; anthers ca. 2 mm; staminodes absent. Infructescence with 1-4 fruits, infructescence stalk ca. 1 cm, stellate. Stipe slightly shorter than infructescence stalk, not articulate, stellate. Capsule ellipsoid, 3.5-4 cm, base rounded; stalk 3-4 mm. Seeds obovate, ca. 1 cm.

Evergreen forests; 100-700 m. Guangxi, SW Guizhou, S and SE Yunnan [Myanmar, W Thailand].

Burretiodendron esquirolii is included in the IUCN Red List as "Vulnerable (B1+2c)." It is relatively common in Guizhou and Yunnan.


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