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FOC | Family List | FOC Vol. 19 | Cucurbitaceae

35. Cucurbita Linnaeus, Sp. Pl. 2: 1010. 1753.

南瓜属 nan gua shu

Authors: Anmin Lu & Charles Jeffrey

Pepo Miller.

Herbs, climbing or prostrate, annual. Stem and branches robust. Tendrils 2- to many fid. Leaf blade lobed, base cordate. Plants monoecious; flowers solitary, yellow. Male flowers: calyx tube campanulate, rarely elongate; segments 5, lanceolate or leaflike at apex; corolla campanulate, 5-lobed; stamens 3; filaments free; anthers connected into a head, one 1-celled, two 2-celled; anther cells linear, reflexed; connective not produced; pistillode absent. Female peduncle short; calyx and corolla as in male flowers; staminodes 3, broadly triangular; ovary oblong or globose, with 3-5-placentas; ovules numerous, horizontal; style short; stigmas 3-5-lobed or bifurcate. Fruit large, fleshy, indehiscent. Seeds numerous, compressed, smooth.

About 15 species: warm regions of the Americas, also cultivated in tropical, subtropical, and temperate regions; three species (all introduced) in China.

1 Calyx segments linear, apex leaflike; fruiting pedicel conspicuously enlarged at apex; seed margin thickened.   3 C. moschata
+ Calyx segments linear or linear-lanceolate, apex not leaflike; fruiting pedicel not strongly enlarged at apex   (2)
2 (1) Leaf blade triangular or ovate-triangular, irregularly 5-7-lobed; calyx segments linear-lanceolate; fruiting pedicel angular-sulcate, slightly thickened at apex; seed marginate and obtuse.   1 C. pepo
+ Leaf blade reniform or orbicular, almost entire or dentate; calyx segments lanceolate; fruiting pedicel not angular-sulcate, not thickened at apex; seed margin obtuse or ± marginate.   2 C. maxima

Lower Taxa


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