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Question
Diploxylic or polyxylic vascular bundles are found in
Diploxylic or polyxylic vascular bundles are found in
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Solution
The correct option is C Cycas
In Cycas, vascular bundle is conjoint, collateral, xylem is diploxylic, the larger patch is the centripetal xylem and the two lateral patches are centrifugal xylem. The secondary growth in a young stem is normal, but as it becomes older, new rings are formed giving rise concentric rings of secondary vascular tissues (polyxylic condition).
In Cycas, vascular bundle is conjoint, collateral, xylem is diploxylic, the larger patch is the centripetal xylem and the two lateral patches are centrifugal xylem. The secondary growth in a young stem is normal, but as it becomes older, new rings are formed giving rise concentric rings of secondary vascular tissues (polyxylic condition).
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