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14. Lycianthes (Dunal) Hassler, Annuaire Conserv. Jard. Bot. Geneve. 20: 180. 1917.
红丝线属 hong si xian shu
Solanum subgenus Lycianthes Dunal in A. de Candolle, Prodr. 13(1): 161. 1852.
Shrubs, subshrubs, or rarely herbs or creeping herbs, unarmed; pubescence of many-celled, simple or 2- to many-branched hairs. Leaves solitary, paired, or sometimes unequal paired; leaf blade entire. Inflorescences 1-10-flowered fascicles in leaf axils; peduncle obsolete or absent. Flowers actinomorphic, 5- or rarely 4-merous, pedicellate. Calyx cup-shaped, truncate, often with 5-10 subapical teeth; teeth linear-subulate or umbonate, equal or not. Corolla white or purple-blue, rotate or stellate, shallowly or deeply divided. Stamens inserted at apex of corolla tube; filaments short, equal; anthers elliptic dehiscing by oblique apical pores. Ovary 2-locular; ovules numerous. Style glabrous. Fruit a red or red-purple berry, globose. Seeds small, numerous, deltate, deltate-reniform, or lenticular, finely reticulate.
About 180 species: most in Central and South America, ten species in China.
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| 1 |
Herbs perennial; stems creeping, often rooting at nodes; flowers solitary, rarely 2 |
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9 Lycianthes lysimachioides |
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Shrubs or herbs; stems erect, not rooting at nodes; flowers mostly in fascicles, rarely solitary. |
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(2) |
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| 2 (1) |
Calyx usually lacking teeth, sometimes 1-toothed; plants puberulent or glabrous |
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7 Lycianthes laevis |
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Calyx 5-10-toothed; plants pubescent with many-celled or branched hairs. |
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(3) |
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| 3 (2) |
Calyx teeth longer than tube; corolla white |
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4 Lycianthes macrodon |
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Calyx teeth mostly shorter than tube; corolla white or pale purple to purple-blue. |
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(4) |
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| 4 (3) |
Branchlets, petiole, pedicel, and calyx with dense, yellow simple hairs and 2- to many-celled hairs; corolla white to pale purple. |
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(5) |
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Branchlets, petiole, pedicel, and calyx with only simple hairs; corolla purple to purple-blue. |
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(6) |
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| 5 (4) |
Inflorescences mostly more than 1-flowered; blades of major leaves more than 4 cm |
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1 Lycianthes biflora |
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Flowers solitary; blades of major leaves less than 3.5 cm |
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10 Lycianthes solitaria |
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| 6 (4) |
Teeth of fruiting calyx 0.5-1 mm. |
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(7) |
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Teeth of fruiting calyx mostly more than 1.5 mm. |
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(8) |
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| 7 (6) |
Teeth of fruiting calyx 10 |
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8 Lycianthes neesiana |
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Teeth of fruiting calyx 5 |
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6 Lycianthes marlipoensis |
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| 8 (6) |
Plant soon glabrous; pedicel usually less than 1 cm |
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5 Lycianthes shunningensis |
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Plant sparingly villous with many-celled hairs; pedicel 1-1.5 cm. |
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(9) |
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| 9 (8) |
Leaf blade glabrescent except on veins; pedicel and calyx sparingly strigose with ascending hairs |
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3 Lycianthes yunnanensis |
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Leaf blade persistently downy-puberulent; pedicel and calyx densely puberulent with mostly short, weak hairs |
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2 Lycianthes hupehensis |
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List of lower taxa
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