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CONVOLVULACEAE MORNING-GLORY FAMILY

Robert E. Preston, except as noted

Annual, perennial herb, subshrub, generally twining or trailing. Leaf: 0 or alternate. Inflorescence: cyme or flowers 1 in axils; bracts subtending flowers 0 or 2. Flower: bisexual, radial; sepals (4)5, ± free, overlapping, persistent, often unequal; corolla generally showy, generally bell-shaped, ± shallowly 5-lobed, generally pleated and twisted in bud; stamens 5, epipetalous; pistil 1, ovary superior, chambers generally 2, each generally 2-ovuled, styles 1–2. Fruit: generally capsule. Seed: 1–4(6).
55–60 genera, 1600–1700 species: warm temperate to tropics; some cultivated for food or as ornamental (Ipomoea). [Stefanovic et al. 2003 Syst Bot 28:791–806] Monophyletic only if Cuscutaceae included, as treated here. Ipomoea cairica (L.) Sweet, Ipomoea hederacea Jacq. [Ipomoea nil L., misappl.], Ipomoea indica (Burm.) Merr. (including Ipomoea mutabilis Ker Gawl.), Ipomoea purpurea (L.) Roth, Ipomoea triloba L., all included in TJM (1993), not naturalized. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553; Stefanovic et al. 2002 Amer J Bot 89:1510–1522]

Key to Convolvulaceae

IPOMOEA MORNING-GLORY

Daniel F. Austin

Annual, perennial herb from rhizome or caudex. Stem: trailing to high-climbing. Leaf: simple or palmately compound, petioled; blade cordate, lobed or not. Inflorescence: bracts 0. Flower: corolla generally ± funnel-shaped, not or barely lobed; style 1, stigma head-like or of 2–3 spheric lobes. Fruit: spheric; valves 2–4.
500–600 species: tropics, warm temperate; some cultivated as ornamental or for food (Ipomoea batatas (L.) Lam., sweet-potato). (Greek: worm-like) Ipomoea lacunosa L. reported as urban weed from birdseed in Aptos, Santa Cruz Co.

Key to Ipomoea

Previous taxon: Dichondra occidentalis
Next taxon: Ipomoea cairica

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 21 2014
Citation for this treatment: [Author of taxon treatment] 2013. Ipomoea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=11478, accessed on Nov 21 2014

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