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FOC | Family List | FOC Vol. 19 | Annonaceae

2. Uvaria Linnaeus, Sp. Pl. 1: 536. 1753.

紫玉盘属 zi yu pan shu

Authors: Bingtao Li & Michael G. Gilbert

Narum Adanson; Uva Kuntze.

Shrubs, climbing, sometimes erect or small trees, indument with stellate hairs. Inflorescences terminal, axillary, extra-axillary, leaf-opposed, or rarely on older branches; flowers mostly solitary or paired, rarely in short racemes or few-flowered cymes. Torus depressed, pubescent or tomentose. Sepals 3, valvate, usually connate at base. Petals 6, in 2 whorls, sometimes connate at very base, each whorl imbricate. Stamens many; anther locules often oblong or linear; connectives apically truncate to rounded. Carpels many, rarely few, linear-oblong; ovules many per carpel or rarely 2 or 3, in 1 or 2 series; styles outside often pilose; stigmas usually apically 2-cleft, involute. Fruit apocarpous; monocarps mostly ± stipitate, oblong, ovoid, or subglobose, fleshy and berrylike. Seeds several per monocarp or 1 by abortion, subhorizontal, with or without a short aril.

About 150 species: Old World tropics; eight species (one endemic) in China.

L. L. Zhou et al. (Syst. Biodivers. 7: 249-258. 2009) include Cyathostemma in Uvaria on the basis of a recent molecular study, but this is not accepted by one of us (Li). See the account of Cyathostemma for more details.

1 Leaf blade abaxially glabrous or inconspicuously and sparsely stellate pubescent but soon glabrescent   (2)
+ Leaf blade abaxially distinctly tomentose or pubescent, hairs simple or stellate   (4)
2 (1) Leaf blade oblong to oblong-ovate, abaxially glabrous; ovules 6-8 per carpel.   1 U. boniana
+ Leaf blade obovate-lanceolate, abaxially inconspicuously and sparsely stellate pubescent, glabrescent; ovules 2 per carpel   (3)
3 (2) Fruit ca. 1 cm in diam., smooth; leaf blade secondary veins 8-12 on each side of midvein.   2 U. tonkinensis
+ Fruit ca. 3.5 cm in diam., densely tuberculate; leaf blade secondary veins 12-14 on each side of midvein.   3 U. kweichowensis
4 (1) Flowers 9-10 cm in diam.; monocarps cylindric, 4-6 cm, slightly constricted between seeds.   6 U. grandiflora
+ Flowers 1.5-4 cm in diam.; monocarps globose to ovoid-ellipsoid, 2-3.8 cm, not constricted between seeds   (5)
5 (4) Monocarps with soft and dense spines; petals yellowish and leaf blade thinly leathery to thickly papery.   4 U. calamistrata
+ Monocarps unarmed; petals dark red to purple, or if yellow then leaf blade membranous   (6)
6 (5) Leaf blade membranous; petals yellow to yellowish.   5 U. kurzii
+ Leaf blade thinly leathery or leathery; petals dark red to purple   (7)
7 (6) Leaf blade apex acuminate, secondary veins adaxially flat; flowers ca. 1.5 cm in diam.   7 U. rufa
+ Leaf blade apex acute, obtuse, or rounded, secondary veins adaxially impressed; flowers 2.5-4 cm in diam.   8 U. macrophylla

Lower Taxa


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