e-Key v3 - Ke<span id="jodit_selection_marker_1706181333137_8856113177099154" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>y to Apocyn<span id="jodit_selection_marker_1706181333137_5806739842805135" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae Subfamilies
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Anthers free from style head
  • Corolla lobe aestivation in bud typically sinistrorse (overlapping to the left), rarely dextrorse (overlapping to the right)
  • Fruit dehiscent or indehiscent, syncarpous or apocarpous, a berry, drupe, follicle or capsule
  • Seeds naked, with wings, or arils, but almost never with a tuft of hairs
 Plumerioideae
b
  • Anthers adnate or ± adherent to style head
  • Corolla lobe aestivation in bud typically dextrorse or valvate, rarely sinistrorse
  • Fruit dehiscent, almost always apocarpous, a pair of follicles, sometimes reduced to one by abortion or postgenitally fused
  • Seeds small, compressed, almost always with a coma (tuft of hairs) at one end
 002
Backtrack a
  • Anthers 4-locular, adherent to style head by hairs or secretions, lower part often sterile
  • Filaments free
  • Pollen shed as monads
  • Nectaries, if present, in a ring around base of ovary
 Apocynoideae
b
  • Anthers 2- or 4-locular, adnate to style head (if adherent by hairs or secretions then pollen gathered in 4 small pollinia - Secamonoideae), fertile throughout
  • Filaments free or fused
  • Pollen shed in tetrads into translators or gathered in 2(4) pollinia attached to the corpuscle
  • Nectaries located in alternistaminal troughs at base of filaments or staminal column
 002
Backtrack a
  • Pollen shed in tetrads into spoon-shaped translators with a sticky end which can adhere to a pollinator for removal
  • Anthers 4-locular
 Periplocoideae
b
  • Pollen gathered in pollinia attached in pairs (or 4s) to a ± spherical corpuscle which can become attached to a pollinator for removal
  • Anthers 2- or 4-locular
 002
Backtrack a
  • Anthers 4-locular; pollen gathered in 4 small pollinia attached to a soft, pale corpuscle
 Secamonoideae
b
  • Anthers 2-locular; pollen gathered in 2 pollinia attached to a dark, hard corpuscle
 Asclepiadoideae

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