Long-Tongued Fly Pollination and Evolution of Floral Spur Length in the Disa draconis Complex (Orchidaceae)

Authors:
  • SJS. D. Johnson
    S. D. Johnson
  • KSK. E. Steiner
    K. E. Steiner
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Abstract
Field studies in South Africa showed that floral spur length in the Disa draconis complex (Orchidaceae) varies enormously between populations in the southern mo...