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| 1 |
Fruit usually red, rarely yellow (I. micrococca); pyrenes 4-8(-13), striate or sulcate, or not striate or sulcate abaxially, endocarp leathery, rarely woody |
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(2) |
| + |
Fruit usually black, rarely red (I. macropoda) or green (I. chapaensis) or purple-black (I. tsoi); pyrenes 4-6(-9), striate and sulcate abaxially, endocarp stony or bony, rarely woody (I. kusanoi) |
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(5) |
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| 2 (1) |
Fruit depressed globose; style present, stigma capitate or crested; pyrenes 6-8(-13), abaxially longitudinally striate, endocarp woody. |
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193 I. fragilis |
| + |
Fruit globose; style absent, stigma discoid; pyrenes 4-8, abaxially longitudinally 1-sulcate, or not striate or sulcate, endocarp leathery |
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(3) |
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| 3 (2) |
Female inflorescences: cymes 1-3-flowered, solitary, rarely fasciculate, axillary. |
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196 I. serrata |
| + |
Female inflorescences: cymes umbelliform or compound cymes, more than 3-flowered, solitary, axillary |
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(4) |
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| 4 (3) |
Inflorescences: compound cymes, secondary axis usually longer than pedicels; lateral veins of leaf blade 5-8 pairs. |
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194 I. micrococca |
| + |
Inflorescences: cymes umbelliform, secondary axis usually absent, or shorter than pedicels; lateral veins of leaf blade 10-20 pairs. |
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195 I. polyneura |
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| 5 (1) |
Fruit more than 10 mm in diam., persistent stigma columnar; style present |
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(6) |
| + |
Fruit less than 10 mm in diam., persistent stigma usually discoid or capitate; style usually absent |
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(7) |
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| 6 (5) |
Fruit 10-14 mm in diam., pyrenes 7-9; rudimentary ovary pulvinate, apex slightly retuse; leaf blade papery. |
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197 I. macrocarpa |
| + |
Fruit 12-20 mm in diam., pyrenes 6 or 7; rudimentary ovary conical, rostellate, apex shallowly lobed; leaf blade thinly leathery or papery. |
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198 I. chapaensis |
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| 7 (5) |
Pedicels of female flowers and fruit 10-30 mm |
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(8) |
| + |
Pedicels of female flowers and fruit shorter than 10 mm |
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(9) |
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| 8 (7) |
Endocarp stony; leaf blade ovate or ovate-elliptic, adaxially puberulent, apex caudate-acuminate, acumen usually 6-10 mm. |
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199 I. asprella |
| + |
Endocarp woody; leaf blade ovate, glabrous throughout, apex obtuse or shortly and broadly acuminate. |
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200 I. kusanoi |
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| 9 (7) |
Leaf blade obovate, obovate-elliptic, or elliptic, base cuneate or attenuate; pyrenes 4 or 5 |
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(10) |
| + |
Leaf blade ovate, ovate-elliptic, or broadly elliptic, base usually obtuse, rarely rounded or cuneate; pyrenes 5 or 6 |
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(11) |
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| 10 (9) |
Leaf blade obovate, usually 2-5 × 1-3 cm; branchlets pubescent at base; fruit globose, ca. 7 mm in diam.. |
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201 I. aculeolata |
| + |
Leaf blade obovate-elliptic or elliptic, 5-8 × 1.8-3.3 cm; branchlets sparsely puberulent or glabrescent; fruit ellipsoidal, 10-15 mm, 6-8 mm in diam.. |
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202 I. kiangsiensis |
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| 11 (9) |
Fruit ca. 5 mm in diam., red, fruiting pedicel 6-7 mm, pyrenes 5; calyx of male flowers ca. 2.5 mm in diam., shallowly 5-lobed, margin erose; rudimentary ovary pulvinate, depressed at center. |
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203 I. macropoda |
| + |
Fruit 6-8 mm in diam., purple-black, fruiting pedicel 1-3 mm, pyrenes 6; calyx of male flowers ca. 4 mm in diam., 6-lobed, margin entire; rudimentary ovary pulvinate, flat at center. |
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204 I. tsoi |
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