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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Perennial herb, shrub, tree, woody vine; juvenile, flower plants generally unlike. Stem: generally branched. Leaf: simple or compound, generally alternate; stipules ± fused to ± sheathing, petiole base or 0. Inflorescence: umbels 1 to panicled; bracts deciduous or not. Flower: generally bisexual, generally radial, generally < 5 mm; sepals generally 5, fused at base, inconspicuous, persistent; petals generally 5, free, ± white to green, deciduous; stamens generally 5, generally alternate petals; ovary inferior, chambers 1–15, 1-ovuled, styles as many as chambers, free or fused, persistent. Fruit: berry or drupe, occasionally flat, dry.
47 genera, 1350 species: especially tropics, subtropics medicinal (e.g., Panax, ginseng; Aralia, sarsaparilla), ornamental (e.g., Aralia, Fatsia, Hedera, Polyscias). [Plunkett et al. 2004 Plant Syst Evol 245:1–39] —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Key to Araliaceae
Perennial herb, creeping or sprawling, glabrous [hairy]; rhizomes or stem rooting at nodes. Leaf: simple; petiole scarious-stipuled, not sheathing; blade ± round, peltate or not, entire to deeply lobed. Inflorescence: simple umbels, occasionally spikes, open or dense; bracts 0 or inconspicuous; pedicels 0–many, spreading. Flower: calyx lobes 0 or minute; petals obtuse or acute, ± green to ± yellow-white or ± purple, tip not incurved. Fruit: elliptic to round, very compressed side-to-side; ribs ± equal, thread-like, distinct or not; oil tubes 0, fruit wall with individual oil cells; fruit central axis not obvious. Seed: face flat to convex.Key to Hydrocotyle
± 100 species: worldwide, especially southern hemisphere. (Greek: water cup, apparently from leaf shape) Hydrocotyle moschata G. Forst., Hydrocotyle ranunculoides, and Hydrocotyle sibthorpioides Lam. occasionally reported as lawn weeds.
Plant fleshy, floating or creeping. Leaf: petiole 5–35 cm, stout; blade generally 2–5 cm wide, round-reniform, generally wider than long, deeply 3–7-lobed, entire to minutely crenate. Inflorescence: peduncles 1–5 cm; umbels dense, 5–10-flowered; pedicels short. Fruit: 1–3 mm, elliptic to round; ribs obscure.
2n=48. Lake margins, ponds, slow-moving streams; < 1500 m. North Coast, Outer North Coast Ranges, Cascade Range Foothills, c Great Central Valley, Central Western California (except Inner South Coast Ranges), Southwestern California (except Channel Islands, Western Transverse Ranges), w edge Mojave Desert; to eastern North America, South America. Mar–Aug [Online Interchange]
Previous taxon: Hydrocotyle
Next taxon: Hydrocotyle umbellata
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 30 2014
Citation for this treatment: [Author of taxon treatment] 2013. Hydrocotyle, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=28607, accessed on Jul 30 2014
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© 1996 Doreen L. Smith
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