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FOC | Family List | FOC Vol. 19 | Rubiaceae

62. Neolamarckia Bosser, Bull. Mus. Natl. Hist. Nat., B, Adansonia. 6: 247. 1985.

团花属 tuan hua shu

Authors: Tao Chen & Charlotte M. Taylor

Trees, unarmed; buds conical. Raphides absent. Leaves opposite, usually with domatia; stipules caducous, interpetiolar, triangular. Inflorescences terminal, capitate with heads globose and solitary, many flowered, pedunculate, bracteate. Flowers sessile, bisexual, monomorphic. Calyx limb 5-lobed; lobes sometime spatulate. Corolla yellow to white, salverform to funnelform, glabrous inside; lobes 5, imbricate in bud. Stamens 5, inserted in upper part of corolla tube, partially exserted; filaments short; anthers basifixed. Ovary 2-celled in basal portion, 2-4-celled in upper portion, ovules several in each cell on axile, simple or 2-forked placentas attached to upper third of septum; stigma cylindrical or fusiform, at apex bifid, exserted. Fruiting head with central axis becoming markedly enlarged and fleshy to fibrous. Fruit drupaceous, indehiscent or tardily dehiscent into 4 indehiscent segments or perhaps dehiscent valves, ellipsoid to cylindrical or obconic, with exocarp somewhat fleshy to membranous or papery, with endocarp cartilaginous to bony, with calyx limb persistent; seeds several, small, compressed, fusiform to angled, with testa membranous; endosperm fleshy; embryo small, cylindrical.

Two species: S and SE Asia, Australia, and New Guinea, one species occasionally cultivated for lumber worldwide; one species in China.

The flowers are tightly packed on the thickened axis of the inflorescence heads but not actually fused to each other as has sometimes been (incorrectly) suggested.

The name of this species and its genus have long been confused. Ridsdale (Blumea 24: 307-366. 1979) in his revision of the Naucleeae treated this species as Anthocephalus chinensis (Lamarck) A. Richard ex Walpers, as done by several other authors; however, the nomenclature here follows the conclusions of Bosser (loc. cit.: 243-248; Adansonia 21: 93-95. 1999) and Razafimandimbison (Tribal Delimit. Naucleeae (Ph.D. Diss.): 70-75. 2000).

Lower Taxon


 

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