e-Key v3 - Key to Ulmaceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Plants with axillary spines
  • Stipules connate along one margin
b
  • Plants without spines
  • Stipules free
Backtrack a
  • Ovary stipitate, compressed
  • Fruit a flat samara with the wing surrounding the fruit
  • Embryo straight
b
  • Ovary sessile
  • Fruit a thinly fleshy drupe
  • Embryo curved
Backtrack a
  • Leaves serrate almost from the base
  • Male flowers with induplicate-valvate perianth lobes
  • Styles 0.5-1(2) mm long
b
  • Leaves entire, coarsely toothed or serrate in the upper two-thirds
  • Male flowers with imbricate perianth lobes
  • Styles 2-5 mm long