Question

Cortical vascular bundles are found in the stem of

• A. Salvadora
• B. Nyctanthes
• C. Both of the above
• D. Zea mays

Answer 1

The correct option is B Nyctanthes

• In the stem of Nyctanthes of the family Oleaceae, apart from the usual vascular bundles taking place in more or less a ring, there exhibit four cortical bundles at the ridged segments of the stem.
• These bundles are inverted and are the bundles of leaf trace called cortical bundle.
• The cortical bundle is a vascular system which allows the transportation of water and nutrients through the voluminous cortex.
• The cortical bundle emerges radially from the xylem and produces shoots that run tangentially to the cortex.
• Hence, Nyctanthes contains Cortical vascular bundle.
• So, the correct answer is 'Nyctanthes'.