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ULMACEAE ELM FAMILY

Alan T. Whittemore

Tree. Leaf: simple, alternate, 2-ranked; veins pinnate; stipules deciduous. Flower: radial; sepals 4–9, free to fused; corolla 0; stamens 4–9, opposite sepals; ovary superior, chamber 1, ovule 1, style branches 2. Fruit: 2-winged nutlet.
7 genera, ± 60 species: temperate to tropics; some cultivated for ornamental (Ulmus, Zelkova), used for wood (especially Ulmus). [Sytsma et al. 2002 Ann Missouri Bot Gard 89:1531–1546] Celtis moved to Cannabaceae. —Scientific Editor: Bruce G. Baldwin.
Unabridged references: [Elias 1970 J Arnold Arbor 51:18–40]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Oct 1 2014
Citation for this treatment: [Author of taxon treatment] 2013. Ulmaceae, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=278, accessed on Oct 1 2014

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