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40. Lagochilus Bunge ex Bentham, Labiat. Gen. Spec. 640. 1834.
兔唇花属 tu chun hua shu
Subshrubs or perennial herbs. Rootstocks woody. Stems green-white, rigid, sparsely hirsute. Leaf blade rhombic, palmatipartite or pinnatipartite; lobes spinescent, sometimes subtending sterile spinescent bracteoles. Verticillasters 2-10-flowered. Calyx campanulate to tubular-campanulate, 5-veined; throat oblique, straight; teeth 5, subequal or 3 posterior teeth longer, triangular to oblong or broadly ovate, usually longer than tube, apex spinescent. Corolla villous outside, pilose annulate inside, 2-lipped; upper lip oblong, straight, slightly concave, 2-lobed or 4-toothed; lower lip obliquely spreading, 3-lobed; middle lobe largest, obcordate, 2-lobulate; lateral lobes straight, acute, or emarginate. Stamens 4, exserted or subincluded, anterior 2 longer; filaments complanate; anther cells 2, parallel or divergent, ciliate. Style filiform, apex subequally 2-cleft. Nutlets flattened-obconical, oblong-obovoid or oblong-ovoid, apex truncate or rounded, glandular, dusty hairy, scaly or glabrous, smooth.
About 35 species: Asia, 11 species in China.
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| 1 |
Leaf axils of sterile branches without spinescent bracteoles. |
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(2) |
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Leaf axils with spinescent bracteoles. |
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(5) |
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| 2 (1) |
Calyx tube oblong-lanceolate |
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4 Lagochilus ilicifolius |
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Calyx teeth triangular. |
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(3) |
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| 3 (2) |
Calyx tube and bracteoles glabrous |
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2 Lagochilus bungei |
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Calyx tube and bracteoles hairy. |
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(4) |
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| 4 (3) |
Calyx teeth erect or slightly oblique, subequal, tube densely bristly; bracteoles densely strigose, capitate glandular |
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1 Lagochilus hirtus |
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Calyx teeth projected, 2 anterior shorter, tube sparsely hairy at base; bracteoles spreading hairy |
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3 Lagochilus pungens |
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| 5 (1) |
Calyx teeth 4, rarely 5; apical leaf blade broadly cuneate or flabellate, awned-serrate toward apex |
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7 Lagochilus xinjiangensis |
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Calyx teeth 5; leaf blade broadly cuneate to rhombic, deeply divided or lobed. |
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(6) |
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| 6 (5) |
Calyx teeth ovate to broadly ovate, shorter than to as long as tube. |
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(7) |
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Calyx teeth oblong or lanceolate, longer than tube. |
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(9) |
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| 7 (6) |
Leaf base cuneate to round; blade 1- or 2-pinnatipartite |
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8 Lagochilus grandiflorus |
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Leaf base cuneate; blade 3-lobed, lobes toothlike or ovate-oblong. |
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(8) |
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| 8 (7) |
Leaf blade broadly rhombic, lobes obtuse, spinescent; nodes glabrous |
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5 Lagochilus diacanthophyllus |
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Leaf blade cuneate-rhombic, lobes spinescent-aristate; basal nodes lanate, apical nodes tomentose |
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6 Lagochilus lanatonodus |
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| 9 (6) |
Spinescent bracteoles glabrous; calyx tube sparsely villous; upper lip of corolla 2-cleft, middle lobe of lower lip short 2-toothed, lateral lobes dentate |
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11 Lagochilus kaschgaricus |
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Spinescent bracteoles sparsely hispid or villous; calyx tube densely villous or tomentose, glandular hairy; upper lip of corolla 2- or 3-lobulate, middle lobe of lower lip 2-lobulate or entire. |
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(10) |
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| 10 (9) |
Calyx teeth ovate, apex acute, tube sparsely tomentose; lobes of upper lip of corolla 2-lobulate, lobes of lower lip entire |
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10 Lagochilus platyacanthus |
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Calyx teeth broadly ovate, apex rounded, tube densely villous; lobes of upper lip of corolla many lobulate, lobes of lower lip 2-toothed at apex |
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9 Lagochilus macrodontus |
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List of lower taxa
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