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| 1 |
Calyx teeth subequal, posterior one larger, flat |
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82 Hanceola |
| + |
Calyx 2-lipped (upper lip mostly 4-toothed and lower lip entire, rarely upper lip 3-toothed and lower lip 2-toothed), very rarely equally 5-toothed, if so then upper lip of corolla 4-lobed and lower entire. |
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(2) |
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| 2 (1) |
Lower lobe of corolla short, saccate, abruptly reflexed, narrow at base; calyx equally 5-toothed |
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83 Hyptis |
| + |
Lower lobe of corolla navicular or plane or slightly concave. |
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(3) |
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| 3 (2) |
Lower lobe of corolla longer than other lobes, not reflexed, narrow at base; calyx various. |
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(4) |
| + |
Lower lobe of corolla flat or slightly concave, not narrowed at base; calyx 2-lipped. |
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(8) |
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| 4 (3) |
Filaments connate, forming a sheath at base or on basal half; calyx dilated in fruit but not deformed; inflorescences various but always with brightly colored bracts; generally succulent herbs |
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88 Coleus |
| + |
Filaments separate. |
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(5) |
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| 5 (4) |
Calyx suberect, 2-lipped, upper lip 3-toothed and lower 2-toothed, or upper lip entire and lower 4-toothed, throat oblique; verticillasters in dense ovoid, oblong, to cylindric spikes; corolla tube not saccate or spurred at base; herbs or subshrubs with succulent leaves |
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84 Anisochilus |
| + |
Calyx erect or declined, equally 5-toothed or 2-lipped (upper lip 3-toothed, lower 2-toothed); verticillasters (2-)6- to many flowered, separate or in panicles or racemes; corolla tube saccate or spurred at base. |
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(6) |
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| 6 (5) |
Corolla tube with a conspicuous elongated spur at base or on basal half; calyx lower lip somewhat truncate; nutlets minutely pitted |
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87 Ceratanthus |
| + |
Corolla tube saccate or short spurred at base; calyx lower lip ± 2-toothed; nutlets smooth or dotted. |
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(7) |
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| 7 (6) |
Upper corolla lip deeply 3-cleft at apex, middle lobe widened, notched; posterior filaments dilated, pilose on outer side at base |
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85 Skapanthus |
| + |
Upper corolla lip equally or subequally 4-lobed at apex; posterior filaments not dilated, glabrous or rarely hairy on outer side at base |
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86 Isodon |
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| 8 (3) |
Lower lip of fruiting calyx entire, incurved; upper lip entire or with a small tooth on each side or 3-lobed; bracts always brightly colored. |
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(9) |
| + |
Lower lip of calyx 2-toothed, teeth separate or connate. |
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(10) |
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| 9 (8) |
Upper lip of calyx 3-toothed, calyx tube 8-veined, with many transverse veins, pitted at base in fruit; inflorescences of loose racemes |
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90 Mesona |
| + |
Upper lip of calyx subentire, calyx tube 10-veined, without transverse veins or foveolae at base in fruit; inflorescences of dense spikes |
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89 Nosema |
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| 10 (8) |
Upper lip of calyx not decurrent into tube. |
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(11) |
| + |
Upper lip of calyx ± decurrent into tube. |
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(13) |
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| 11 (10) |
Fruiting calyx campanulate, ± bent downward, posterior 1 or 3 teeth slightly larger; lateral and anterior teeth nearly equal; flowers very small |
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93 Basilicum |
| + |
Fruiting calyx tubular, elongate. |
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(12) |
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| 12 (11) |
Fruiting calyx obscurely veined, not pitted at base; verticillasters in dense terminal capitula |
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91 Acrocephalus |
| + |
Fruiting calyx prominently veined, pitted at base; verticillasters separate, in terminal or axillary racemes or racemose panicles |
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92 Geniosporum |
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| 13 (10) |
Style lobes 2, equal, subulate; corolla tube included or exserted; upper lip of calyx obovate or circular |
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94 Ocimum |
| + |
Style globose or clavate, entire or 2-cleft; corolla tube mostly exserted; upper lip of calyx ovate, teeth of lower lip mostly separate. |
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(14) |
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| 14 (13) |
Stamens and style included or slightly exserted; nutlets ovoid or subglobose, minutely tuberculate, glabrous |
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95 Orthosiphon |
| + |
Stamens and style much exserted, their exserted parts ca. 2 × as long as corolla tube; nutlets ovoid or oblong, corrugate |
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96 Clerodendranthus |
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