e-Key v3 - Ke<span id="jodit_selection_marker_1706778853093_9684925825104043" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>y to Zannichelli<span id="jodit_selection_marker_1706778853093_2763735658413897" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Distal leaves in pseudowhorls, basal leaf sheaths (or stipules) free from leaf
  • Fruit with spiny or warty ridge or ridges
  • Rhizome creeping, not well differentiated
 Zannichellia
b
  • Distal leaves distichous, never pseudowhorled, with an attached sheathing base
  • Fruit smooth or warty, never ridged
  • Rhizome creeping, sympodial, well differentiated
 002
Backtrack a
  • Leaf blade up to 2 mm wide with submarginal vascular strands and oblique transverse strands continuous with mid-vein
  • Male flowers naked, 8-sporangiate with a pair of vestigial appendages on the connective
  • Female flowers always 1-carpellate, with a membranous envelope
  • Fruit uniformly warty
 Pseudalthenia
b
  • Leaf blade less than 2 mm wide, with a single midvein
  • Male flowers with short, 3-lobed perianth immediately below anther, 2-12-sporangiate
  • Female flowers (1-)3-carpellate, each carpel subtended by a separate tepal
  • Fruit smooth
 Althenia

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