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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual, perennial herb; hairs often hard from calcium deposits; generally monoecious. Stem: trailing or climbing, 1–many; tendril generally 1 per node, often branched. Leaf: generally simple, alternate, generally palmate-lobed and -veined, petioled; stipules 0. Inflorescence: at nodes; staminate flowers in racemes, panicles, small clusters, (or 1); pistillate flowers generally 1. Flower: unisexual [bisexual], radial; hypanthium > ovary; calyx generally 5-lobed (or ± 0); corolla rotate to cup- or bell-shaped, generally 5-lobed; stamens 3–5 (or ± 1–3 from fusion), anthers twisted together, often > filaments; ovary ± inferior, chambers 3–5, placentas parietal, styles 1–3, stigmas generally lobed, large. Fruit: berry, drying or not, or capsule, irregularly dehiscent, often gourd- or melon-like. Seed: 1–many.
100 genera, 700 species: especially tropics; some cultivated (Citrullus, watermelon; Cucumis, cucumber; Cucurbita, gourd, pumpkin, squash; Luffa, loofah; Sechium, chayote). [Schaefer et al. 2009 Proc Roy Soc London Ser B, Biol Sci 276:843–851] Several cultivated species included Bryonia dioica reported as waifs in California (Howell 1958 Wasmann J Biol 16:1–157), but none recently. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Unabridged references: [Jeffrey 1990 An outline classification of the Cucurbitaceae, In: Bates, Robinson, and Jeffrey (eds.), Biology and Utilization of the Cucurbitaceae 17:449–463, Cornell Univ Press, Ithaca, NY; Kocyan et al. 2007 Molec Phylogen Evol 44:553–577; Lira, Rodriguez-Jimenez, Alvarado, Rodriguez, Castrejon, Dominguez-Mariani 1998 Acta Bot Mex 42: 43–77; McVaugh 2001 Cucurbitaceae In W.R. Anderson (ed), Flora Novo-Galiciana 3:483–652, Univ Michigan Herbarium, Ann Arbor, Michigan; Schaefer et al. 2008 Syst Bot 33:125–132]
Key to Cucurbitaceae
Annual, perennial herb, from large, fleshy, tuber-like root. Stem: glabrous to scabrous; tendril branched or not. Leaf: lanceolate to round, entire to deeply lobed. Inflorescence: flowers 1 per node, staminate, pistillate at different nodes. Flower: corolla > 2 cm wide (staminate generally < pistillate), deeply cup-shaped, yellow to orange, fused part 4–12 cm, lobes generally recurved; stigmas 3, 2-lobed. Fruit: spheric to oblong, indehiscent; rind firm, smooth to rough or grooved. Seed: many, < 20 mm, ± ovate, ± flat; margin thick or raised.Key to Cucurbita
12–14 species: America. (Latin: gourd) [Sanjur et al. 2002 Proc Natl Acad Sci USA 99:535–540]
Unabridged references: [Montes-Hernandez & Eguiarte 2002 Amer J Bot 89:1156–1163; McVaugh 2001 Cucurbita In W.R. Anderson (ed), Flora Novo-Galiciana 3:510–529, Univ Michigan Herbarium, Ann Arbor, Michigan; Decker 1988 Econ Bot 42:4–15]
Herbage scabrous; tendril branches ± from base or 0. Leaf: 20–60 cm, ± cordate, green, main veins ± white, lobes 0 or 3–5, distinct ± 1/2 to petiole, terminal 1 longest. Flower: corolla 6–9 cm, orange. Fruit: > 10 cm wide, dark green, yellow, or orange, 1–2-colored or speckled. Seed: 8–20 mm, white or brown.
2n=40. Sandy places; < 100 m. South Coast (Ventura Co.); cultivated worldwide. May–Sep [Online Interchange]
Unabridged note: Cucurbita pepo widely cultivated; Cucurbita argyrosperma Huber (cultivated squash), Cucurbita ficifolia Bouché (chilacayote), Cucurbita moschata Duchesne (chicamita), Cucurbita pepo var. medullosa Alef. (calabaza corriente) often escape cultivation but are not naturalized in California Cultivars may be derived from ancient widespread distribution of wild populations including Cucurbita pepo subsp. fraterna (L.H. Bailey) Lira et al., a native of central Mexico (Decker-Walters 2002 Syst Bot 27:19–28).
Previous taxon: Cucurbita palmata
Next taxon: Marah
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 29 2014
Citation for this treatment: [Author of taxon treatment] 2013. Cucurbita, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=57170, accessed on Jul 29 2014
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