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Question
Hadrocentric vascular bundles are characteristic of
Hadrocentric vascular bundles are characteristic of
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Solution
The correct option is D All of the above
When xylem surrounds the phloem tissue from all sides the vascular bundle is called as amphivasal vascular bundle or leptocentric type. Such bundles are seen in monocot plant after secondary growth. When phloem surrounds the xylem tissue entirely, the vascular bundle is called as amphicribal vascular bundle or hadrocentric vascular bundle. Such vascular bundles are seen in pteridophytes, like Lycopodium, Selaginella, flowers and fruits of dicots.
Thus, the correct answer is option D.
When xylem surrounds the phloem tissue from all sides the vascular bundle is called as amphivasal vascular bundle or leptocentric type. Such bundles are seen in monocot plant after secondary growth. When phloem surrounds the xylem tissue entirely, the vascular bundle is called as amphicribal vascular bundle or hadrocentric vascular bundle. Such vascular bundles are seen in pteridophytes, like Lycopodium, Selaginella, flowers and fruits of dicots.
Thus, the correct answer is option D.
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