e-Key v3 - Key to Gentianaceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
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  • Trees or shrubs
Anthocleista
b
  • Herbs or suffrutices
002
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  • Ovary 2-locular through intrusion of locular wall, the placentas eventually appearing axile
002
b
  • Ovary 1-locular, with parietal or sometimes intrusive placentas
002
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  • Flowers mainly blue, rarely pink or white
  • Corolla tube short, broadly cylindrical
  • Anthers coriaceous
Exacum
b
  • Flowers mainly yellow, sometimes cream or white
  • Corolla tube cylindrical or funnel-shaped
  • Anthers membranous
Sebaea
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  • Flowers 3-merous
Pycnosphaera
b
  • Flowers 4- or 5-merous
002
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  • Corolla lobes with fringed nectaries near their base
  • Flowers in lax cymes
Swertia
b
  • Corolla lobes without nectaries
002
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  • Flowers sessile or subsessile, solitary or in axillary clusters or heads
002
b
  • Flowers in terminal, simple or compound cymes
002
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  • Flowers in clusters in axil of each bract
Enicostema
b
  • Flowers solitary, rarely 2 together in axil of a floral bract
Neurotheca
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  • Calyx keeled
  • Plants glabrous
Chironia
b
  • Calyx without keels
  • Plants pubescent
Orphium

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