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Compare pinnate unicostate venation and ...

Compare pinnate unicostate venation and palmate multicostate venation.

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Pinnately Parallel Venation (Unicostate). When there is a prominent midrib in the center, from which arise many veins perpendicularly and run parallel to each other. Example: Musa, Zinger, Curcuma, Canna
. Palmate Parallel Venation (Multicostate): In this type several veins arise from the tip of the petiole and they all run parallel to each other and unite at the apex, eg. Borassus flabellifer, water hyacinth
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