MadSci Network: Botany |
The generalization is that monocots have parallel leaf venation and dicots have net venation, also called reticulate venation. However, like many generalizations, there are exceptions. Leaves in the monocot genus Anthurium and Dioscoreales have net venation. What appear to be leaves with parallel venation in the dicot genus Acacia are actually phyllodes or flattened petioles. Many monocots do not strictly have parallel venation so some botanists prefer the term striate venation to parallel venation. Monocot leaves can be longitudinal-striate (same as parallel venation) or pinnate-striate, in which it appears there is a large central vein with smaller veins branching from it as in the prayer plant (Maranta species) among others. References Monocot Leaf Venation Reticulate and Parallel Venation Dioscoreales Acacia "leaves"
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