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

3. Cleistanthus macrophyllus J. D. Hooker, Fl. Brit. India. 5: 278. 1887.

大叶闭花木 da ye bi hua mu

Kaluhaburunghos macrophyllus (J. D. Hooker) Kuntze.

Trees ca. 6 m tall; branches stouter; plants glabrous except for hispid bracts and ovary. Stipules caducous; petiole 6-7 mm, stouter; leaf blade ovate, oblong-ovate, or elliptic, 14-30 × 8-15 cm, leathery, abaxially glossy, base obtuse to rounded, lucid abaxially, margin slightly revolute, apex obtuse, mucronulate; lateral veins 7 or 8 pairs, elevated above, reticulate veins prominent. Glomerules axillary. Male flowers: sepals 5, lanceolate; petals 5, obovate, margin crenulate; disk annular, smooth, entire. Female flowers: bracts small, margin ciliate; pedicels very short or almost sessile; sepals 5, broadly ovate, ca. 5 × 3.5 mm, leathery dried; petals obovate, smaller than sepals, margin crenulate; disk cylindric, margin 5-crenulate, as high as or higher than ovary; ovary ovoid, hispid, 3-celled; styles 3, bifid, recurved, flabellate. Fruiting pedicel 1-8 mm; capsules ovoid-trigonous, 1.5-2 cm in diam.; carpodermis thickened, brown; carpopodium long. Fl. Apr-Jun, fr. Jun-Aug.

Open forests; 400-700 m. SE Yunnan (Hekou, Jinping) [Indonesia, Malaysia (peninsular), Singapore, Thailand].


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