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FOC | Family List | FOC Vol. 19 | Annonaceae | Dasymaschalon

6. Dasymaschalon sootepense Craib, Bull. Misc. Inform. Kew. 1912: 144. 1912.

黄花皂帽花 huang hua zao mao hua

Desmos sootepensis (Craib) J. F. Maxwell.

Trees to 10 m tall. Branchlets pilose, glabrous or glabrescent with age. Petiole 5-9 mm, sparsely hairy; leaf blade elliptic, 10-18 × 3-7 cm, papery, abaxially glaucous and very sparsely hairy, adaxially glabrous or very sparsely hairy, midvein abaxially sparsely hairy and adaxially glabrous, secondary veins 9-12(-18) on each side of midvein and flush or adaxially impressed, base rounded to very slightly attenuate, apex acuminate. Flowers on young growth. Pedicel 1-3 cm, sparsely hairy, bracteolate at base. Sepals broadly ovate, 1-2.5(-3) × 2.2-2.6(-3) mm. Petals yellow, ovate, 2.5-4.5 × 1.1-1.3(-2) mm, papery, not twisted, outside sparsely hairy; floral chamber to 3.7 mm, ca. 90% of petal length. Stamens ca. 140; connectives apically truncate; pollen echinate. Carpels ca. 20, oblong, ca. 3 mm; ovules 2-7 per carpel; stigmas glabrous or sparsely hairy. Fruiting pedicel 1.5-3 cm, glabrous or sparsely hairy; monocarp stipes 6-12 mm; monocarps red, ellipsoid when 1-seeded or moniliform when more than 1-seeded, 3-6 × 0.4-0.7 cm, terminal apiculus 1.5-2.5 mm; constrictions 2-2.5 mm wide. Seeds 1-4 per monocarp, ellipsoid, 17-24 × 4-5 mm. Fl. Apr-Jul, fr. Jun-Sep.

Evergreen broad-leaved forests on rocky/sandy alluvium; 600-1300 m. S Yunnan [N Thailand].


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