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FOC | Family List | FOC Vol. 8 | Brassicaceae

74. Malcolmia R. Brown in W. T. Aiton, Hortus Kew. 4: 121. 1812.
[nom. cons.]

涩芥属 se jie shu

Malcolmia africana

Credit: Photo: Al-Shehbaz

Fedtschenkoa Regel & Schmalhausen ex Regel; Strigosella Boissier; Wilckia Scopoli, nom. rej.

Herbs annual, biennial, or perennial with a woody caudex. Trichomes a mixture of simple, forked, or stellate, sometimes malpighiaceous. Stems erect or ascending. Basal leaves not rosulate, simple, entire or variously dentate or pinnatifid. Cauline leaves petiolate or subsessile, not auriculate, entire, dentate, or rarely lobed. Racemes few to many flowered, ebracteate or rarely bracteate. Fruiting pedicels slender or thickened, ascending or divaricate. Sepals ovate or narrowly oblong, erect, glabrous or pubescent, base of lateral pair saccate or not. Petals white, pink, or purple, longer than sepals; blade obovate, spatulate, oblong, or oblanceolate, apex obtuse or rounded; claw well developed. Stamens 6, erect, tetradynamous; filaments dilated or not at base, free or median 4 connate in 2 pairs; anthers ovate, oblong, or linear, apex apiculate or not. Median glands absent; lateral glands 1 on each side of lateral stamen, or lunar. Ovules 20-90 per ovary. Fruit dehiscent siliques, linear, terete, 4-angled, or latiseptate, subsessile; valves glabrous or pubescent, smooth or torulose; replum rounded; septum complete; style obsolete or to 1 mm or longer; stigma conical, 2-lobed, lobes connivent, often connate, opposite replum. Seeds uniseriate, wingless, oblong or ovate, plump or slightly flattened; seed coat reticulate, not mucilaginous when wetted; cotyledons incumbent or rarely accumbent.

About 35 species: C and SW Asia, Mediterranean region; four species in China.

1 Plants densely hispid at least basally with exclusively simple subsetose trichomes to 3 mm; fruit strongly flattened straight   2 M. hispida
+ Plants pubescent basally with forked or 3- or 4-rayed trichomes; fruit quadrangular or subterete, if flattened then strongly coiled   (2)
2 (1) Fruit quadrangular, not torulose, straight   1 M. africana
+ Fruit flattened or subterete, torulose, curved or strongly coiled, rarely arcuate or straight.   (3)
3 (2) Fruit subterete, straight or curved near apex, rarely forming a loop, 0.5-0.8(-0.9) mm wide; petals 2-3.5(-4) mm   4 M. karelinii
+ Fruit flattened, strongly coiled to from up to 5 loops, (0.9-)1-1.2 mm wide; petals (4.5-)6-8 mm   3 M. scorpioides

Lower Taxa


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