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Key to Vinca

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1 Leaves ovate, broadest near the base, cordate or subcordate-rounded at the base, 2-6 cm wide, thin in texture and deciduous to semi-evergreen; leaf margins ciliate; Corollas 3-5 cm across, the tube 12-15 mm long; pedicels 3-5 cm long
1 Leaves lanceolate or elliptic, broadest near the middle, rounded to cuneate at the base, 1-2 cm wide, thick in texture and evergreen; leaf margins not ciliate; corollas 2-3 cm across, the tube 9-11 mm long; pedicels 1-1.5 cm long
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