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7. Dinetus Buchanan-Hamilton ex Sweet, Brit. Fl. Gard. 2: t. 127. 1825.
飞蛾藤属 fei e teng shu
Dinetopsis Roberty.
Twiners, herbaceous. Leaves simple, petiolate, cordate, herbaceous, margin entire (lobed in 1 species), venation pedate; veins raised abaxially, often winged. Inflorescences solitary or paired, axillary, bracteate racemes or panicles; bracteoles usually minute scales (sepal-like in D. duclouxii), basal to calyx. Pedicel filiform. Flowers often fragrant. Sepals free and quincuncial or short connate basally and valvate distally, equally enlarged or outer 3 larger, reflexed or clasping, with (5 or) 7 or 9 (or 11) longitudinal veins basally. Corolla funnelform or nearly salverform, entire to 5-lobed, glabrous except for an apical tuft of hairs. Stamens included; filaments glabrous or basally pilose; anthers linear to sagittate; pollen 3-colpate, not spiny. Disc ringlike, 5-lobed, or absent. Pistil included; ovary unilocular; ovules 2. Style often jointed proximally; stigma ellipsoid, entire or slightly 2lobed. Fruit papery, indehiscent. Seed 1, often longitudinally keeled, smooth, glabrous.
Eight species: Bhutan, China, India, Indonesia, Laos, Myanmar, Nepal, Pakistan, Philippines, Thailand, Vietnam; six species in China.
Fang Rhui-cheng considers Dinetus as a synonym of Porana.
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| 1 |
Fruiting sepals ± unequal, loosely clasping fruit; corolla 1.5-4 cm, rose, pink, lavender, blue, or violet (to yellowish or white). |
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(2) |
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Fruiting sepals ± equal, reflexed at maturity (clasping in D.dinetoides); corolla (not known in D.truncatus) typically less than 1 cm, white, with divided limb. |
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(4) |
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| 2 (1) |
Bracteoles 3, immediately below calyx, ± sepal-like; plants ± sticky glandular |
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3 Dinetus duclouxii |
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Bracteoles 2, part way down pedicel, minute, scalelike; plants pubescent or glabrous, never sticky glandular. |
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(3) |
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| 3 (2) |
Corolla funnelform, 1.7-2.3 cm, tube widening from base upward; fruiting sepals flat |
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1 Dinetus decorus |
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Corolla nearly salverform, 3-4.5 cm; tube cylindric, with a basal swelling; fruiting sepals concave |
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4 Dinetus grandiflorus |
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| 4 (1) |
Leaves pubescent on both sides; corolla campanulate; fruiting sepals 6-10 1.5-3 mm, sometimes ciliate |
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2 Dinetus dinetoides |
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Leaves subglabrous adaxially; corolla funnelform; sepals 9-21 2.5-5 mm. |
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(5) |
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| 5 (4) |
Fruit ellipsoid, apex acute or apiculate |
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5 Dinetus racemosus |
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Fruit broadly obovoid to rhomboid, apex truncate or depressed |
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6 Dinetus truncatus |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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