Angiosperm Morphology


   
 
Palmately Compound Leaves
 
A palmately compound leaf is one in which all the leaflets arise from a common point at the tip of the petiole. Depending upon the number of leaflets present, the palmately compound leaves can be distinguished into the following types.
 
Unifoliolate
Here only one leaflet arises from the tip of the petiole. e.g., Lemon.
 
Bifoliolate
When two leaflets arise from the tip of the petiole, it is said to be bifoliolate. e.g., Balanites.
 
Trifoliate
A trifoliolate leaf is one in which three leaflets arise from the tip of the petiole. e.g., Feronia.
 
Tetrafoliolate or Quadrifoliolate
When a palmately compound leaf ends in four leaflets, it is said to be tetrafoliolate or quadrifoliolate. e.g., Oxalis.
 
Multifoliolate or Digitate
 
When five or more leaflets arise from the tip of the petiole, it is said to be multifoliolate or digitate. e.g., Silk Cotton.
 
Comparison between pinnately compound leaf and branch bearing simple leaves
 
 
 
 
     
   
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