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

5. Baliospermum calycinum Müller Argoviensis, Flora. 47: 470. 1864.

云南斑籽木 yun nan ban zi mu

Baliospermum calycinum var. corymbiferum (J. D. Hooker) Chakrabarty & N. P. Balakrishnan; B. calycinum var. densiflorum (D. G. Long) Chakrabarty & N. P. Balakrishnan; B. calycinum var. effusum (Pax & K. Hoffmann) Chakrabarty & N. P. Balakrishnan; B. calycinum var. micranthum (Müller Argoviensis) Chakrabarty & N. P. Balakrishnan; B. calycinum var. siamense (Craib) Chakrabarty & N. P. Balakrishnan; B. corymbiferum J. D. Hooker; B. densiflorum D. G. Long; B. effusum Pax & K. Hoffmann; B. meeboldii Pax & K. Hoffmann; B. micranthum Müller Argoviensis; B. siamense Craib; B. suffruticosum Pax & K. Hoffmann.

Shrubs 0.5-2.5(-3) m tall, dioecious; young branches puberulent, glabrescent. Petiole 2-10 cm, subglabrous, 2-glandular at apex; leaf blade narrowly elliptic or lanceolate to oblong, 9-16[-20] × 3-8 cm, membranous or papery, both surfaces puberulent to glabrescent, sometimes veins persistently hairy, densely granulose when dry, base cuneate or broadly cuneate, margin sparsely serrulate to slightly crenate, rarely subentire, apex acute to caudate-acuminate; basal veins 1 or 3, midrib prominent on both surfaces, lateral veins 6-14. Inflorescences axillary, glabrous to pubescent; peduncles elongated. Male flowers: inflorescences narrowly paniculate, to 18 cm, many flowered; pedicels 1-4 mm; sepals 5, orbicular to ovate, 1-2.5 × 0.8-2 mm, white, glabrous; disk glands free; stamens 10-16[-21]; filaments (0.2-)1-2 mm; anthers oblong, (0.3-)0.6 × ca. 0.2 mm. Female flowers larger; inflorescences 2-3 cm, paniculate, sometimes only several flowered; pedicels 1-2 mm, stouter; sepals elliptic or oblong (or slightly ovate), 3-5(-8) × 1-2(-4) mm, chartaceous, pubescent or almost glabrous, not or slightly accrescent; disk annular; ovary glabrous or puberulent; styles 3, bifid at apex. Capsules erect, ± depressed globose, ca. 6 × 8-10 mm, glabrous, with 3 longitudinal grooves. Seeds ellipsoid, ca. 4 × 3 mm, brown to dark brown, with stripes of brown spots. Fl. Jun-Oct, fr. Sep-Dec.

Dense forests; 500-2500 m. S Yunnan [Bangladesh, Bhutan, India, Myanmar, Nepal, Thailand].


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