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49. Colquhounia Wallich, Trans. Linn. Soc. London, Bot. 13: 608. 1822.
火把花属 huo ba hua shu
Shrubs erect or ascending. Stems and branches terete. Leaves petiolate, with simple or stellate hairs, margin serrate or crenate. Inflorescences pedunculate to subsessile; verticillasters few flowered, in spikes or capitula; bracteoles minute, linear. Pedicel short to obsolete. Calyx tubular-campanulate, 10-veined, glabrous at throat; teeth 5, subequal. Corolla yellow to purple, sometimes spotted, 2-lipped; tube exserted, curved, dilated at throat, not hairy annulate inside; upper lip straight; lower lip ± patent, slightly unequally 3-lobed, middle lobe sometimes emarginate. Stamens 4, reaching upper lip of corolla, anterior 2 longer; filaments slightly hairy; anthers ellipsoid, cells 2, divaricate, apex confluent. Ovary glabrous. Style apex unequally 2-cleft. Nutlets oblong to oblanceolate, flattened dorsiventrally, swollen on 1 side, apex membranous winged.
About six species: Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, Vietnam; five species in China.
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| 1 |
Leaves with simple hairs only. |
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(2) |
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Leaves with stellate hairs, sometimes also with simple hairs. |
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(3) |
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| 2 (1) |
Corolla tube less than 2 × as long as upper lip |
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5 Colquhounia seguinii |
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Corolla tube more than 3 × as long as upper lip |
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4 Colquhounia elegans |
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| 3 (1) |
Stem, branches, and abaxial leaf surface densely white lanate-tomentose; calyx 1.2-1.5 cm |
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2 Colquhounia vestita |
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Stem, branches, and abaxial leaf surface not white lanate-tomentose, sometimes densely gray tomentulose; calyx less than 1 cm. |
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(4) |
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| 4 (3) |
Young branches and abaxial leaf surface densely gray tomentulose with simple and stellate hairs; leaves 4-5 cm; cymes few flowered, pedunculate, on short branchlets with reduced leaves |
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3 Colquhounia compta |
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Young branches and abaxial leaf surface rust colored stellate tomentose; leaves 7-11 cm; cymes many flowered, ± pedunculate, on normal lateral branches |
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1 Colquhounia coccinea |
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List of lower taxa
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Treatments in Other Floras @ www.efloras.org
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