| 1 |
Nectary apically acute to acuminate |
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(2) |
| + |
Nectary obtuse |
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(10) |
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| 2 (1) |
Stem straight, erect; capsule linear, or if elliptic, then flowers "bladdery." |
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(3) |
| + |
Stem geniculate at nodes, ascending; capsule elliptic, with 2 rows of seeds |
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(6) |
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| 3 (2) |
Nectary extended through ca. 2/3 of spur; leaves ternate to biternate |
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(4) |
| + |
Nectary extended through 1/3 or less of spur; leaves biternate to triternate |
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(5) |
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| 4 (3) |
Lower petal strongly saccate at base; capsule obovoid, ca. 1 cm. |
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49 C. saccata |
| + |
Lower petal straight; capsule linear to oblong, to 2 cm. |
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46 C. linjiangensis |
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| 5 (3) |
Lower petal not or slightly saccate; capsule linear-oblong. |
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47 C. fumariifolia |
| + |
Lower petal very broadly saccate; capsule elliptic; flowers "bladdery". |
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48 C. ussuriensis |
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| 6 (2) |
Inner petals 8 mm or more; dorsal crests of inner petals not or slightly extended beyond apex |
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(7) |
| + |
Either inner petals shorter (to 7 mm) or dorsal appendages/crests of inner petals clearly extended beyond apex or both |
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(8) |
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| 7 (6) |
Flowers pale indigo; inner petals almost purple; lower petal base obviously saccate; capsule obovoid, ca. 1 cm. |
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49 C. saccata |
| + |
Flowers blue; inner petals pale; lower petal straight, almost without sac; capsule fusiform, 1.5-2.2 cm. |
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50 C. humilis |
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| 8 (6) |
Spur sigmoidally upcurved, 11-14 mm; inner petals 9-10 mm (dorsal crest excluded). |
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51 C. kiautschouensis |
| + |
Spur not or slightly curved, 6-9 mm; inner petals 5-8 mm |
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(9) |
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| 9 (8) |
Dorsal appendages of inner petals obtuse, overtopping petal apex 1/7-1/5. |
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52 C. repens |
| + |
Dorsal appendages of inner petals narrowly acute, extended beyond apex 1/3 of length of petal. |
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53 C. watanabei |
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| 10 (1) |
Nectary very short, less than 1/4 as long as spur; flowers pink (Xinjiang) |
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(11) |
| + |
Nectary 1/3-2/3 as long as spur; flowers blue to purple, rarely pink (E and NE China) |
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(12) |
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| 11 (10) |
Flowers 2-2.5 cm; flowers broad at apex; capsule lanceolate. |
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54 C. glaucescens |
| + |
Flowers 3.5-4.5 cm; flowers narrow; capsule linear. |
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55 C. schanginii |
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| 12 (10) |
Ultimate leaflets rounded with long thin petiolules; fruit ovoid; racemes 1-8-flowered; pedicels much longer than bracts; stems geniculate, much branched |
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(13) |
| + |
Petiolules short or indistinct; racemes 8-20-flowered; pedicels equaling bracts; stems usually erect |
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(14) |
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| 13 (12) |
Flowers blue or indigo, ca. 2 cm; spur 1.2-1.4 cm; nectary extended through ca. 3/4 of spur; inner petals 7-8 mm; raceme 3-8-flowered. |
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56 C. caudata |
| + |
Flowers white, 1-1.2 cm; spur 5-7 mm; nectary extended through 1/3-1/2 of spur; inner petals ca. 4 mm; raceme 1-3-flowered. |
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57 C. humosa |
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| 14 (12) |
Most bracts entire; leaflets lanceolate, entire; corolla upcurved. |
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60 C. yanhusuo |
| + |
Most bracts divided; leaflets lobed or dentate; corolla straight or curved |
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(15) |
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| 15 (14) |
Stems stout, simple or branched from prophyll; petioles basally not vaginate; outer petals dentate, apex retuse and mucronulate. |
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58 C. turtschaninovii |
| + |
Stems weak, branched from cauline leaves; lower leaves basally vaginate; petal limbs entire and not or only slightly mucronulate. |
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59 C. gamosepala |
