Pterospermum lanceifolium Roxb. Family: Malvaceae
Synonyms: Pterospermadendron insulare (Pierre) Kuntze, Pterospermadendron jackianum (Wall.) Kuntze, Pterospermadendron lanceifolium (Roxb. ex DC.) Kuntze, Pterospermadendron pierrei Kuntze, Pterospermadendron saigonense Kuntze, Pterospermum insulare Pierre, Pterospermum jackianum Wall., Pterospermum pierrei Hance, Pterospermum saigonense Pierre ex Laness.,
Description: Trees, to 25 m tall; bark yellow-brown or gray, striate. Branchlets yellow-brown velutinous when young. Stipules 2-3-fimbriate, velutinous, longer than petiole; petiole ca. 0.5 cm; leaf blade lanceolate or oblong-lanceolate, 5-9 × 2-3 cm, abaxially densely yellow-brown or yellow-white velutinous, adaxially glabrous, base oblique or obtuse, margins entire or with several teeth near apex, apex acuminate or acute. Flowers solitary; pedicels 3-5 cm, articulate, velutinous; epicalyx lobes at middle of pedicel, 4- or 5-fimbriate or linear, 7-8 mm. Sepals linear, ca. 2 × 0.3 cm, both surfaces puberulent. Petals white, lanceolate, as long as sepals or slightly shorter, apex obtuse. Staminodes filiform, longer than stamens, basally villous. Ovary puberulent. Capsule woody, cylindrical-ovoid, ca. 5 × 2 cm, yellow-brown tomentose, base tapering into slender, 3-5 cm stipe, apex obtuse. Seeds 2-4 per locule, 2-2.5 cm including wing. Fl. spring and summer.
Published article of Pterospermum lanceifolium
Studies on the chemical constituents from the leaves of Pterospermum lanceaefolium Roxb
Zhong Yongli, Yan Sujun, Su Jingyu, Zeng Longmei
Natural Product Research and Development [1998, 10(2):15-18]
http://en.cnki.com.cn/Article_en/CJFDTOTAL-TRCW199802003.htm
