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FOC | Family List | FOC Vol. 8 | Brassicaceae | Cardamine

16. Cardamine delavayi Franchet, Bull. Soc. Bot. France. 33: 397. 1886.

洱源碎米荠 er yuan sui mi ji

Herbs perennial, 15-45 cm tall, sparsely pilose on leaves and at nodes, or glabrous throughout. Rhizomes slender and much elongated, with a few stolons and no bulbils. Stems simple at base, rarely branched above, erect, strongly flexuous; nodes well spaced, lowermost internodes to 9 cm. Rhizomal leaves simple; petiole 3-12 cm; leaf blade reniform, cordate, or suborbicular, 1.2-2.5 × 1.5-3 cm, palmately veined, base cordate, margin entire or obscurely 5-lobed, endings of principal veins and leaf apex mucronate. Cauline leaves 2-5, trifoliolate; petiole of lowermost and middle ones 2-5 cm, not auriculate and sometimes ciliate at base; terminal leaflet broadly oblong or narrowly obovate, 0.7-2 × 0.7-1.5 cm, with a petiolule to 4 mm, margin entire, apex mucronate; lateral leaflets similar to terminal, slightly smaller. Uppermost cauline leaves trifoliolate; petiole 1-3.5 cm, not auriculate at base; terminal leaflet narrowly oblong or linear, sessile, 1-3 cm × (1-)2-4(-5) mm; lateral leaflets smaller. Racemes 7-15-flowered. Fruiting pedicels ascending, (1-)1.2-2(-2.3) cm, straight. Sepals ovate, 2-3 × 1-1.5 mm, margin membranous. Petals white, broadly obovate, 5-7 × 2.5-4 mm, apex rounded. Median filament pairs 2.5-4, not flattened; lateral pair 1.5-3 mm; anthers linear-oblong, 1-1.3 mm. Ovules 10-20 per ovary. Fruit linear, 2-3 cm × 1-1.3 mm; valves torulose, glabrous; style 2-4 mm. Seeds brown, oblong, 1.2-1.5 × 0.6-0.9 mm, wingless.

Open gravel along streams, forests and clearings; 2100-4000 m. Sichuan, Yunnan [Bhutan].

The above first records from Sichuan and Bhutan are based on Smith 10441 (UPS) and Cooper 4917 (BM, E), respectively.


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