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FOC | Family List | FOC Vol. 11 | Euphorbiaceae | Croton

17. Croton lauioides Radcliffe-Smith & Govaerts, Kew Bull. 52: 187. 1997.

榄绿巴豆 lan lü ba dou

Croton olivaceus Y. T. Chang & P. T. Li, Guihaia 8: 54. 1988, not Müller Argoviensis (1866); C. sanyaensis Z. L. Xu, nom. illeg. superfl.

Shrubs or treelets ca. 5 m tall; indumentum of purplish brown appressed stellate hairs; young branches glabrous. Stipules linear, caducous; petiole 1-3.5 cm, apex with 2 stalked glands; leaf blade obovate-elliptic to oblanceolate, 7-14 × 2.5-5.5 cm, papery, both surfaces stellate hairy, quickly glabrescent, olivaceous-green adaxially and glaucous abaxially when dried, base cuneate, margins serrulate, apex acute to acuminate; lateral veins 7-9, arcuately ascending, anastomosing before margins. Inflorescence terminal, 3-5 cm, stellate hairy; bracts ovate-triangular, ca. 3 mm, caducous. Male flowers: sepals sparsely stellate-hairy or glabrescent; petals small; filaments white-woolly. Female flowers 1-3 on lower part of inflorescence; sepals ovate-triangular, ca. 3 mm, sparsely and appressed stellate-hairy; ovary yellow tomentose; styles 3, bifid. Fruits not seen. Fl. Jun-Dec.

● Shrublands; 100-300 m. SW Guangdong (Yangchun), S Hainan (Sanya).


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