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