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FOC | Family List | FOC Vol. 19 | Rubiaceae | Aidia

6. Aidia racemosa (Cavanilles) Tirvengadum, Nordic J. Bot. 3: 455. 1983.

总状茜草树 zong zhuang qian cao shu

Stylocoryna racemosa Cavanilles, Icon. 4: 46. 1798; Randia racemosa (Cavanilles) Fernández-Villar (1880), not Roxburgh (1824); R. suishaensis Hayata.

Trees to 25 m tall; branches somewhat flattened becoming subterete, glabrous. Petiole 5-6 mm, glabrous; leaf blade drying thinly leathery, lanceolate to elliptic-oblong, 7-12 × 2-4 cm, glabrous on both surfaces, base acute to cuneate, apex acute; secondary veins 4 or 5 pairs, in abaxial axils usually with foveolate and/or pilosulous domatia; stipules caducous, shortly united around stem, narrowly triangular, 3-5 mm, glabrous, apex acuminate. Inflorescences cymose, ca. 3 × 4-6 cm, glabrescent, with axes becoming monochasial distally; peduncle ca. 0.5 cm; bracts triangular, 1-1.5 mm, acute; pedicels 1-3 mm. Calyx glabrous; ovary portion ellipsoid, ca. 1 mm; limb ca. 1.5 mm, shortly dentate to denticulate; teeth 5. Corolla white, outside glabrous; tube ca. 4 mm; lobes 5, narrowly spatulate-oblong, 5-5.5 mm, adaxially strigillose, obtuse to rounded. Berry 4-8 mm in diam., glabrous.

Forests; elevation in China not noted on specimens [ca. 200 m to probably higher]. Hainan [Indonesia, Malaysia, New Guinea, Philippines, Thailand; Australia, Pacific islands].


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