A vascular bundle in which xylem is in the center and phloem surrounds it is called hadrocentric or amphicribal. Like- Lycopodium, Selaginella, Pteris, Psilotum etc.
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A vascular bundle in which xylem is in the center and phloem surrounds it is called hadrocentric or amphicribal. Like- Lycopodium, Selaginella, Pteris, Psilotum etc.