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2. Corydalis sect. Strictae (Fedde) Wendelbo in K. H. Rechinger, Fl. Iran. 110: 8. 1974.
直茎黄堇组 zhi jing huang jin zu
Corydalis "Gruppe" Strictae Fedde, Repert. Spec. Nov. Regni Veg. 21: 52. 1925; C. subsect. Flabellatae Fedde ex Michajlova; C. sect. Roborowskia (Batalin) H. Chuang & Z. Y. Su; Roborowskia Batalin.
Herbs, perennial, glaucous, slightly fleshy and often rather stiff and fragile. Stems often several, simple or usually branched, ± leafy, from a thick rootstock with some narrow strands lignified, ending in a thick multi-headed dryish caudex usually with dense dead residual petiolar bases. Leaves 1-3 × pinnately divided. Flowers yellow, usually narrow, with short obtuse spur. Inner petals with inconspicuous dorsal crest. Stigma with a small transversely set ellipsoid body with 6 usually distinct marginal papillae plus 2 pairs of submarginal papillae close to style (10 papillae altogether). Capsule linear to oblong. Seeds in 1 row; elaiosome present, set below a protruding hilum area.
Twenty-five species: a very uniform and easily recognized group, in dry mountains of C Asia from Iran eastward to the Himalayas, W China, and Mongolia; 12 species (seven endemic) in China.
Some of the Pamir border species might occur in China: Corydalis bucharica Popov (in Schischkin, Fl. URSS 7: 752. 1937), C. fimbrillifera Korshinsky (Izv. Imp. Akad. Nauk, ser. 5, 9: 406. 1898), and C. hindukushensis Wendelbo & Grey-Wilson (in K. H. Rechinger, Fl. Iran. 110: 9. 1974). They are accounted for in the key.
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| 1 |
Primary leaflets broadly fan-shaped, apically dentate |
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(2) |
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Primary leaflets not fan-shaped; margin not dentate |
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(3) |
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| 2 (1) |
Bracts 4-10 mm; sepals long acuminate, 4-8 mm; pedicels 2-8 mm. |
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7 C. adiantifolia |
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Bracts 1-3 mm; sepals 2-3 mm; pedicels 2-4 mm. |
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6 C. flabellata |
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| 3 (1) |
Plant 2-10 cm; inflorescence 1-4-flowered; leaves 0.5-4 cm, with 2 or 3 pairs of leaflets; style 8-9 mm. |
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3 C. mira |
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Plant more than 10 cm; inflorescence with numerous flowers; leaves longer; style shorter |
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(4) |
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| 4 (3) |
Limb of outer petals ± expanded, dentate or fimbriate; (inflorescence very dense) |
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(5) |
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Limb of outer petals narrow, entire |
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(7) |
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| 5 (4) |
Stems 20-60 cm; leaves bipinnate with much cut leaflets; outer petals slightly dilated apically, usually with a short dentate dorsal crest. |
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5 C. stricta |
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Stems 15-25 cm; leaves pinnate with broad leaflets; outer petals much dilated apically, crest absent |
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(6) |
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| 6 (6) |
Limb of outer petals densely long fimbriate; spur ca. 1/2 as long as limb or longer; sepals 6-7 mm, fimbriate-dentate. ..... C. fimbrillifera (see note above) |
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(6) |
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Limb of outer petals slightly dentate; spur ca. 1/3 as long as limb; sepals 2-3 mm, entire. |
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4 C. kashgarica |
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| 7 (4) |
Spur of upper petal ca. 1/2 as long as limb [or longer] |
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(8) |
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Spur of upper petal ca. 1/3 of limb or shorter |
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(9) |
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| 8 (7) |
Sepals 2-3 mm; spur ca. 1/2 as long as limb. |
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12 C. tianshanica |
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Sepals 4-6 mm; spur longer. ..... C. bucharica or C. hindukushensis (see note above) |
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(7) |
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| 9 (7) |
Inflorescences branched, with cymose lateral inflorescences |
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(10) |
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Inflorescences simple racemes, sometimes several forming a cluster |
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(11) |
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| 10 (9) |
Inflorescences long and narrow, with 2- or 3-flowered lateral cymes only at base; pedicels 4-7 mm; capsules erect. |
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13 C. laxiflora |
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Inflorescences broadly pyramidal, with many 3-10-flowered lateral cymes; pedicels 6-13 mm; capsules pendent. |
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14 C. bibracteolata |
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| 11 (9) |
Leaves twice or almost 3 × pinnate; ultimate leaf lobes 1-2(-3) mm wide; fruit erect. |
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8 C. adunca |
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Leaves once or almost twice pinnate; ultimate leaf lobes 2-6 mm wide; fruit pendent |
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(12) |
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| 12 (11) |
Leaves with 3 pairs of stalked lateral leaflets; racemes 15-40-flowered; flowers clearly apiculate; stems 35-45 cm. |
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9 C. longistyla |
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Leaves with 1 or 2 pairs of subsessile lateral leaflets; racemes ca. 10-flowered; flowers obscurely apiculate; stems 10-30 cm |
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(13) |
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| 13 (12) |
Plant sparingly branched; racemes few. |
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10 C. krasnovii |
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Plant much branched above with clustered racemes. |
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11 C. pseudomicrophylla |
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List of lower taxa
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