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FOC | Family List | FOC Vol. 12 | Theaceae | Stewartia

3. Stewartia laotica (Gagnepain) J. Li & T. L. Ming, Acta Phytotax. Sin. 34: 58. 1996.

老挝紫茎 lao wo zi jing

Hartia laotica Gagnepain, Notul. Syst. (Paris) 10: 121. 1942; H. gracilis (S. Z. Yan) Hung T. Chang & C. X. Ye; H. racemosa Hung T. Chang & C. X. Ye; H. yunnanensis Hu var. gracilis S. Z. Yan.

Small trees, evergreen. Current year branchlets densely white pubescent. Petiole 1.1-1.3 cm, wings ca. 1.5 mm wide, white pubescent; leaf blade oblong to obovate-oblong, 7-10 × 2.5-4 cm, leathery, abaxially pubescent along midvein, adaxially glabrous and shiny, secondary veins 9-12 on each side of midvein, abaxially visible, and adaxially obscure, base cuneate, margin serrulate, apex bluntly acute. Flowers 2-4 in a short raceme. Pedicel 5-7 mm, white pubescent; bracteoles 2, lanceolate, 5-7 mm, white pubescent. Sepals 5, orbicular, ca. 5 mm in diam., outside white pubescent, margin ciliolate, apex rounded. Petals 5, white, broadly obovate, ca. 1.5 cm, outside puberulent. Stamens numerous; filaments basally connate. Ovary densely pubescent, 5-loculed; style 2-4 mm. Capsule subglobose, with 5 or 6 seeds per locule. Seeds narrowly winged. Fl. May-Jun, fr. Sep-Oct.

Forests; 900-1800 m. Guangxi, SE Yunnan [Laos, Vietnam].


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