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Key to Araujia

Apocynaceae

Araujia

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1 Sepals lanceolate to oblong, 1-3 mm wide; corollas rotate, pale green; gynostegial corona of staminal and interstaminal components, fused into a tube, tube 5-8 mm long
1 Sepals ovate, 3-7 mm wide; corollas funnelform, white or light pink; gynostegial corona of 5 distinct staminal elements, each 2.5-3.9 mm long, not fused into a tube, tube 12.1-15.9 mm long, not obscuring the gynostegium