Identification (Unit 4) - Vein Types

Pinnate - Leaf has one midvein or primary vein

  • Craspedodromous - secondary veins reach the margin.
 
veins pinnate crasp
 
  • Camptodromous - secondary veins do not reach the margin.
 
veins pinnate camptodromous
 
  • Acrodromous - three or more primaries or sub-primaries running towards the apex.
 
veins pinnate acrodromous
 

Palmate - Leaf has several primary veins.

  • Actinodromous - three or more primary midveins diverging from a single point in a palmate leaf.
 
veins palmate actinodromous marginal
 
palmate veins actinodromous reticulate
 

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