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FOC | Family List | FOC Vol. 19 | Cucurbitaceae

14. Schizopepon Maximowicz, Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans. 9 [Prim. Fl. Amur.]: 110. 1859.

裂瓜属 lie gua shu

Authors: Anmin Lu & Charles Jeffrey

Herbs, scandent. Stem and branches slender. Tendrils 2-fid. Leaves long petiolate; leaf blade ovate-cordate or broadly ovate-cordate, rarely hastate, margin irregularly dentate, usually 5-7-lobed. Plants dioecious or monoecious; flowers small, unisexual or rarely bisexual. Male flowers usually in a raceme; female flowers solitary or few in a raceme; calyx tube cupular or campanulate; segments 5, lanceolate or subulate; corolla segments 5, white, ovate; stamens 3, free or connate; filaments short; anthers: one 1-celled, two 2-celled; anther cells erect; connective produced or not; ovary ovoid or conical, 3-locular or irregularly 3-locular, 1 ovule in each locule; ovule pendulous; style short, 3-fid or sometimes 5-fid; stigma slightly expanded, 2-lobed. Fruit small, ovoid or conical, smooth or punctate, apex acute or long acuminate, 3-valved or indehiscent, 1-3-seeded. Seeds pendulous, ovate, compressed, margin irregularly dentate.

Eight species: E Asia to the Himalaya; eight species (five endemic) in China.

1 Fruit conical, apex acuminate, rostrate; connective produced, subulate, rarely not produced; ovary irregularly 3-locular, ovule pendulous from middle of locule   (2)
+ Fruit ovoid or ovate, apex acute; connective not produced; ovary 3-locular, ovule pendulous from apex of locule   (4)
2 (1) Connective not produced.   6 S. bomiensis
+ Connective produced, appendage subulate   (3)
3 (2) Leaf blade ovate-cordate, usually unlobed, papery.   7 S. bicirrhosus
+ Leaf blade hastate, 5-lobed, membranous.   8 S. xizangensis
4 (1) Flowers bisexual; stamens free.   1 S. bryoniifolius
+ Flowers unisexual; plant monoecious or dioecious; stamens connate   (5)
5 (4) Plants monoecious; male and female flowers in same inflorescence, with many male flowers above and 1 or 2 female flowers below; filaments connate, anthers free; ovary and fruit smooth.   2 S. monoicus
+ Plants dioecious   (6)
6 (5) Filaments and anthers both connate; flowers larger; calyx segments ca. 3 mm; corolla segments ca. 9 mm.   5 S. macranthus
+ Filaments connate, anthers free or connate at base   (7)
7 (6) Pedicels 2-5 mm; flowers small; calyx segments ca. 1 mm; corolla segments 2-3.5 mm; fruit punctate.   3 S. dioicus
+ Pedicels 5-10 mm; flowers slightly larger; calyx segments ca. 2 mm; corolla segments 3-5 mm.   4 S. longipes

  • List of lower taxa


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