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42. Loxocalyx Hemsley, J. Linn. Soc., Bot. 26: 308. 1890.
斜萼草属 xie e cao shu
Herbs perennial, erect. Stems much branched. Leaves long petiolate; leaf blade margin dentate. Verticillasters few flowered; bracteoles few, subulate. Flowers short pedicellate. Calyx long turbinate, base narrowed, hairy on veins, glabrous inside, 5-10-veined, 2-lipped; anterior teeth 2, coalescent, dilated; posterior teeth 3, shorter than anterior teeth. Corolla rose, purple, dark purple, to dark red, 2-lipped, puberulent, hairy annulate near base inside; tube slender, much exserted; upper lip galeate, straight, entire; lower lip spreading, 3-lobed; middle lobe larger, margin entire or emarginate; lateral lobes entire. Stamens 4, subequal, ascending beneath upper corolla lip; filaments complanate, puberulent; anthers close together in pairs, ovoid, cells 2, divaricate. Disc apex truncate, elongate in fruit. Style included or slightly exserted, apex equally 2-cleft. Nutlets triquetrous, ovoid, apex truncate, puberulent.
Two species: endemic to China.
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Stem and young branches densely retrorse pubescent; leaves ovate-lanceolate, base cuneate to subrounded adaxially sparsely minutely hispid, abaxially densely pubescent; calyx 5-veined |
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1 Loxocalyx quinquenervius |
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Stem and young branches subglabrous, sparsely puberulent or sparsely pilose-strigose, densely strigose on nodes; leaves broadly ovate to cordate-ovate, base truncate to cordate, sparsely minutely hispid; calyx 8-10-veined |
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2 Loxocalyx urticifolius |
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Lower Taxa
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