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26. Corydalis sect. Latiflorae C. Y. Wu & Z. Y. Su, Acta Bot. Yunnan. 18: 398. 1996.
宽花紫堇组 kuan hua zi jin zu
Herbs, perennial, of high elevations, usually low growing, very pale-glaucous (covered with a waxy bloom). Leaves crowded at base. Flowers blue or yellow. Capsule explosively dehiscent. Fruiting pedicel suberect, apically hooked (in Corydalis stracheyi arcuately recurved).
Fifteen species: alpine areas of the Himalayas; 11 species (three endemic) in China.
The length and appearance of rootstocks and underground parts of petioles and stems are dependent on the degree of covering of mobile material in scree. Corydalis uncinata Lidén (Bull. Brit. Mus. (Nat. Hist.), Bot. 18: 520. 1989), with bipinnate leaves with rounded lobes, broad entire bracts partly concealing flowers, and yellow corolla, occurs in Dolpo on the Nepal side of the Chinese border and most probably grows also in Xizang.
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| 1 |
Flowers pale blue to pale purplish blue, or partly white |
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(2) |
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Flowers yellow, sometimes partly suffused with purplish brown |
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(4) |
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| 2 (1) |
Spur equaling inner petals. |
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147 C. tsangensis |
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Spur less than 1/2 as long as inner petals |
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(3) |
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| 3 (2) |
Crest of outer petals not decurrent on spur; corolla not spongy. |
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149 C. nana |
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Crest of outer petals reaching tip of spur; corolla spongy, very broad. |
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148 C. latiflora |
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| 4 (4) |
Bracts entire, partly concealing flowers. ..... C. uncinata (see note above) |
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(4) |
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Most or all bracts divided |
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(5) |
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| 5 (4) |
Spur of upper petal shorter than inner petals; stems usually longer than 15 cm |
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(6) |
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Spur of upper petal equaling or longer than inner petals; stems shorter than 10 cm |
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(8) |
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| 6 (5) |
Fruiting pedicels arcuately recurved, 10-15 mm; racemes to 10-flowered. |
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146 C. stracheyi |
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Fruiting pedicels erect, apically hooked, 10-30 mm; racemes 10-35-flowered |
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(7) |
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| 7 (6) |
Outer petals not or narrowly crested; spur at least 1/2 as long as inner petals; blade of basal leaves ca. 5 × longer than broad. |
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144 C. lhasaensis |
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Outer petals with broad entire crests; spur less than 1/3 of inner petals; blade of basal leaves 1.5-3 × longer than broad. |
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145 C. meifolia |
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| 8 (5) |
Leaves with small triternate blade and broad petiole; last year’s leaves often persistent; style 5-6 mm. |
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141 C. hendersonii |
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Leaf blade pinnate; only petiolar bases persistent from last year’s leaves; style 2-4 mm |
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(9) |
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| 9 (8) |
Lobes of bracts terminating in long arista. |
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140 C. uranoscopa |
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Lobes of bracts mucronulate or muticous |
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(10) |
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| 10 (9) |
Spur of upper petal 7-9 mm; nectary ca. 1/2 as long as spur (W Xizang). |
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150 C. tibetoalpina |
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Spur of upper petal 11-13 mm; nectary ca. 2/3 as long as spur (Qinghai, S Xizang) |
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(11) |
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| 11 (10) |
Sepals divided to base into a few narrow lobes; outer petals broadly crested. |
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142 C. qinghaiensis |
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Sepals dentate; outer petals narrowly crested. |
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143 C. dubia |
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List of lower taxa
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