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82. Hanceola Kudo, Mem. Fac. Sci. Taihoku Imp. Univ. 2: 54. 1929.
四轮香属 si lun xiang shu
Herbs annual or rhizomatous perennial, sometimes with woody tubers. Leaf base cuneate-decurrent. Verticillasters 2-14-flowered, pedunculate, in elongated terminal racemes. Calyx subcampanulate, 8-10-veined; teeth 5, posterior tooth larger, apex caudate, or limb 2-lipped and lower lip 2-toothed; fruiting calyx very dilated, conspicuously veined. Corolla tube straight to arcuate, exserted, funnelform, 2-lipped, without hairy annulus, sometimes puberulent or villous inside; upper lip 2-lobed, lobes circular; lower lip 3-lobed, middle lobe longest. Stamens 4, subequal or anterior 2 longer, inserted on apical half of corolla tube; filaments complanate, glabrous or puberulent; anthers ovoid, cells 2, divaricate, becoming confluent at apex. Style as long as to longer than stamens. Disc swollen in front. Nutlets oblong, few striate, glabrous, basal scar white, apex rounded.
Six to eight species: all endemic to China.
Hanceola labordei and H. mairei are poorly known and doubtfully belong here. They are not included in the key above, but brief descriptions are given.
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| 1 |
Stamens exserted. |
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(2) |
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Stamens included or nearly so. |
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(3) |
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| 2 (1) |
Plants very sparsely fine strigose; anterior stamens longer |
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5 Hanceola exserta |
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Plants glabrous; anterior stamens shorter |
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6 Hanceola cavaleriei |
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| 3 (1) |
Plants robust, rhizome without woody tubers on nodes; corolla ± arcuate recurved, very dilated apically, more than 3 cm. |
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(4) |
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Plants slender, rhizome with woody tubers on nodes; corolla erect, slender, less than 2.6 cm. |
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(5) |
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| 4 (3) |
Leaves lanceolate to oblanceolate, 10-25 × 4-11 cm; stamens subequal |
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1 Hanceola sinensis |
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Leaves broadly ovate-cordate to ovate, 4-8 × 3-6 cm; anterior stamens longer |
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2 Hanceola cordiovata |
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| 5 (3) |
Stems solitary or numerous arising from rhizome, ascending; leaves 2.5-15 × 1-4.5 cm, coarsely to double serrate; corolla ca. 2.1 cm, upper lip subequal to lower lip, tube usually dilated upward, glabrous inside |
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4 Hanceola flexuosa |
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Stem erect, solitary, 20 cm tall including inflorescence; leaves 3-5.5 × 1.2-2 cm, irregularly shallow serrate; corolla 2.6 cm, lower lip ca. 2 × as long as upper lip, tube gradually dilated above middle, pilose near base inside |
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3 Hanceola tuberifera |
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Lower Taxa
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