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9. Acer sect. Spicata Pax, Bot. Jahrb. Syst. 6: 326. 1885.
穗状枫组 sui zhuang feng zu
Leaves 3- or 5-lobed, margin serrate. Bud scales 2(or 3)-paired. Inflorescences dense, racemose, upright. Pedicels very short. Flowers 5-merous. Stamens 8. Disk extrastaminal. Nutlets veined, one side convex, other side concave.
Three species: E and S Asia, North America; two species in China.
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Leaf blade ovate, 8-12 cm in diam., lobes triangular-ovate, margin doubly and sharply incised-serrate, with acuminate teeth, abaxially yellowish pilose; samara wing including nutlet 2.5-2.8 cm; peduncle and pedicel relatively short. |
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80 A. caudatum |
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Leaf blade suborbicular, 7-9 cm in diam., lobes broadly ovate, margin coarsely serrate, with broad acute or ± obtuse teeth, abaxially densely yellowish tomentose; samara wing including nutlet 1.5-2 cm; pedicel and peduncle relatively long. |
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81 A. ukurunduense |
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Lower Taxa
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