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72. Mosla (Bentham) Buchanan-Hamilton ex Maximowicz, Bull. Acad. Imp. Sci. Saint-Pétersbourg. sér. 3, 20: 456. 1875.
石荠苎属 shi qi zhu shu
Hedeoma Persoon sect. Mosla Bentham, Labiat. Gen. Spec. 366. 1834.
Herbs aromatic, annual. Leaves petiolate, dentate, abaxially conspicuously impressed glandular. Verticillasters 2-flowered, in terminal racemes; bracts small or lower ones leaflike. Flowers
pedicellate. Calyx campanulate, 10-veined, throat hairy, limb subequally 5-toothed or 2-lipped; upper lip 3-toothed, teeth acute to obtuse; lower lip 2-toothed, teeth lanceolate; fruiting
calyx dilated, with base swollen on 1 side. Corolla white or rose to purple-red, tube glabrous or hairy annulate inside; limb nearly 2-lipped, upper lip emarginate; lower lip 3-lobed, margin
crenate; lateral lobes smaller than middle lobe, emarginate. Stamens 4, posterior 2 fertile, anterior 2 reduced, with indistinct anther cells; anther cells 2, divaricate. Style apex subequally to
equally 2-cleft. Nutlets subglobose to globose, sparsely netted or pitted with small depressions; areolae basal, dotlike.
About 22 species: Cambodia, China, India, Indonesia, Japan, Korea, Laos, Malaysia, Philippines, Vietnam; 12 species in China.
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| 1 |
Bracts ovate-lanceolate to circular-obovate; calyx subequally 5-toothed; nutlets pitted with small depressions. |
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(2) |
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Bracts ovate-lanceolate, lanceolate, to needlelike, generally shorter than flowers; calyx 2-lipped; nutlets sparsely netted rarely pitted with small depressions. |
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(6) |
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| 2 (1) |
Bracts ovate-lanceolate, 4-6(-9) mm. |
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(3) |
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Bracts broadly ovate, subcircular, to circular-obovate, 1.5-7 mm. |
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(4) |
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| 3 (2) |
Racemes dense, occupying a large part of each stem or branch; leaves few |
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4 Mosla longispica |
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Racemes lax, occupying a small part of each stem or branch; leaves many |
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5 Mosla pauciflora |
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| 4 (2) |
Bracts 1.5-2.5 mm, loosely arranged |
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3 Mosla soochowensis |
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Bracts 4-7 × 3-5 mm, overlapping. |
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(5) |
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| 5 (4) |
Leaves lanceolate, 5-13 mm; corolla ca. 10 mm |
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2 Mosla hangchowensis |
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Leaves linear-oblong to linear-lanceolate, 2-4(-7) mm; corolla ca. 5 mm |
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1 Mosla chinensis |
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| 6 (1) |
Upper calyx teeth acute. |
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(7) |
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Upper calyx teeth obtuse. |
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(8) |
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| 7 (6) |
Stem retrorse fine puberulent, glabrescent; leaves coarsely 3-5-serrate |
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7 Mosla grosseserrata |
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Stem densely pubescent; leaves serrate |
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6 Mosla scabra |
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| 8 (6) |
Plants leafless; stem retrorse gray pubescent; each branch with a many-flowered raceme; bracts ovate-lanceolate, 2.5-3.5 mm, 1.5-2 × as long as pedicels |
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8 Mosla exfoliata |
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Plants many leaved. |
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(9) |
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| 9 (8) |
Corolla ca. 2.5 mm; plants sparsely villous, puberulent; leaves ovate to ovate-lanceolate |
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9 Mosla cavaleriei |
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Corolla 4-10 mm or more; plants not sparsely villous. |
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(10) |
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| 10 (9) |
Leaves remotely serrate; bracts needlelike to linear-lanceolate |
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10 Mosla dianthera |
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Leaves crenate to crenate-serrate; bracts ovate to lanceolate. |
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(11) |
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| 11 (10) |
Bracts much longer than pedicels; calyx ca. 2.7 mm; corolla slightly longer than calyx |
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11 Mosla longibracteata |
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Bracts as long as pedicels; calyx less than 2 mm; corolla ca. 3 × as long as calyx |
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12 Mosla formosana |
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List of lower taxa
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Treatments in Other Floras @ www.efloras.org
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