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7. Polycarpaea Lamarck, J. Hist. Nat. 2: 3, 5. 1792.
[nom. cons.]
白鼓钉属 bai gu ding shu
Lu Dequan; Michael G. Gilbert
Polia Loureiro, nom. rej.
Herbs or subshrubs, annual or perennial. Stems erect or diffuse. Leaves opposite or falsely verticillate with axillary clusters of leaves, sessile or petiolate; leaf blade linear to obovate; stipules membranous or hyaline. Inflorescence a cyme, terminal. Flowers numerous, 5-merous. Sepals hyaline, midvein not raised. Petals usually small, entire or 2-lobed. Stamens (2--)5. Ovary 1-loculed with few to many ovules; style undivided at apex. Fruit a capsule, 3-valved, few to several seeded. Seeds reniform, slightly flat.
About 50 species: mostly in the Old World tropics and subtropics, a few in the New World tropics; two species in China.
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Leaves linear or acicular, ca. 1 mm wide, longer than internodes at least near base, erect or recurved; sepals 2--3 mm; style short, 1/3--1/2 as long as ovary |
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1 P. corymbosa |
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Leaves narrowly oblong to oblong, 1--3.5 mm wide, shorter than internodes, often mostly sharply reflexed at base; sepals ca. 4 mm; style 1--2 × as long as ovary |
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2 P. gaudichaudii |
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Lower Taxa
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