茎节生根紫堇 jing jie sheng gen zi jin

Type: China. Yunnan: Luquan Xian, Daheiqing, ca. 26°N, 102°30′E, shady place in forest on mossy rocks in seepage water, alt. 3700 m, 26 Aug 2004, M. Lidén & Z. Y. Su 2004-36 (holotype, KUN; isotype, UPS).

A Corydale pseudomairei et C. pseudoweigoldii caulibus procumbentibus, radicibus axillaribus atque corollis minoribus differt.

Herbs, perennial, 30-100 cm tall, glabrous. Stems procumbent to ascending, slender, rooting at nodes, leafy and branched throughout; low late sterile branches procumbent, forming bulb-based leaf rosettes at nodes. Rosette leaves few; petiole 6-18 cm, with fleshy base 0.5-0.8 × 0.3-0.5 cm; blade glaucous abaxially, green adaxially, 2-5 × 2-4 cm, biternate; primary leaflets stalked, secondary shortly stalked to sessile, obovate, thin, shallowly to deeply 2-5-divided; lobes obovate, obtuse. Cauline leaves: petiole 4-10 cm; blade 2-10 × 2-6 cm, like rosette leaves. Raceme lax, 7-13-flowered; lower bracts like upper cauline leaves, 1-2.5 × 1-2 cm; middle shallowly ternatisect, 0.5-1 cm; upper oblanceolate, ca. 0.5 cm, entire. Pedicel ca. 10 mm in flower, 10-18 mm in fruit, erect in fruit. Sepals white, ca. 1.5 × 1-1.5 mm, finely dentate. Corolla purple; inner petals whitish. Outer petals with rather narrow shortly acuminate limb, not crested; upper petal 21-25 mm; spur straight, narrowly cylindric, 10-13 mm; nectary 1/2-3/5 as long as spur; lower petal 12-14 mm, with long claw and narrow rhombic, acute, shortly acuminate limb; inner petals 10-12 mm. Stigma subquadrangular; marginal simple papillae: 2 median distinct, lateral diffuse; geminate papillae lateral (submarginal) and in basal corners; basal lobes not developed. Capsule pendent from erect pedicel, linear, 15-22 × ca. 1.5 mm, 13-20-seeded, explosively dehiscent; style ca. 2 mm. Seeds in 1 row, 1.1-1.2 mm, smooth. Fl. and fr. Aug-Sep.

● Seepage water and mossy places in shade of trees; 3600-3800 m. C Yunnan (Luquan).

Corydalis pseudomairei clearly differs from C. suzhiyunii by its stem being suberect and branched mainly above (not procumbent and rooting at nodes), lack of bulblike dwarf shoots, very large leaflike bracts, and much longer lower pedicels.

The specific epithet is named for one of the collectors, student of Corydalis, Su Zhiyun (苏志云), of the Kunming Institute of Botany, Chinese Academy of Sciences.