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FOC | Family List | FOC Vol. 17 | Lamiaceae

63. Micromeria Bentham, Edward's Bot. Reg. 15: t. 1282. 1829.

姜味草属 jiang wei cao shu

Subshrubs or herbs. Leaves subsessile to short petiolate, ± hairy, conspicuously impressed glandular, upper leaves bractlike. Verticillasters axillary, 1- to many flowered, in terminal spikes or panicles. Calyx tubular, 13(-15)-veined, straight or slightly curved, ± hairy, glandular, throat pilose, limb with 5 subequal straight teeth or somewhat 2-lipped. Corolla white, reddish, to purple, 2-lipped, hairy; tube straight, gradually dilated at throat; upper lip straight, margin entire, apex emarginate or 2-lobed; lower lip spreading, 3-lobed; lobes subequal or middle lobe larger, margin entire, undulate, or emarginate. Stamens 4, anterior 2 longer, ascending, free, apex arcuate, approximate, included or occasionally exserted; anther cells 2, parallel, divergent or divaricate, connectives transversely thicker. Style apex 2-cleft; lobes subulate, equal or anterior lobe elongated, involute, flat, posterior lobe short. Nutlets ovoid or triquetrous oblong, dry, smooth.

About 100 species: Africa, Asia, Europe; five species in China.

The generic limits between Micromeria, Clinopodium, Calamintha, and several related genera not found in China are controversial.

1 Leaves more than 1 cm.   (2)
+ Leaves less than 1 cm.   (3)
2 (1) Stems white floccose-puberulent; leaves entire, involute; verticillasters widely spaced; calyx conspicuously 15-veined; corolla purplish, ca. 1.4 cm, glabrous inside   4 Micromeria wardii
+ Stems densely glandular puberulent; leaves widely spaced, conspicuously crenulate; verticillasters pedunculate, 3-7 in narrow panicles; calyx 13-veined; corolla dark red, ca. 1 cm, pilose on middle of lower lip and apical part of tube inside   5 Micromeria euosma
3 (1) Stems sparsely floccose-puberulent; calyx tubular-funnelform, 2.5-3 mm; bracteoles absent   2 Micromeria formosana
+ Stems densely puberulent or pubescent, white pilose; calyx tubular, more than 4 mm; bracteoles linear to linear-subulate, 1.5-2 mm.   (4)
4 (3) Stems densely pilose, pubescent; calyx to 4 mm, 2-lipped; posterior teeth 3, narrowly triangular, ca. 1.5 mm, long acuminate; anterior teeth 2, subulate, ca. 2 mm, spinescent; corolla ca. 6 mm   1 Micromeria biflora
+ Stems densely puberulent, white spreading pilose; calyx to 9 mm; teeth subequal, subulate, apiculate, ca. 2.5 mm; corolla ca. 1.8 cm   3 Micromeria barosma

Lower Taxa


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