Question

Which one of the following is correct about Pinus?

• A. Monoecious - male and female sporophylls borne on same strobili
• B. Monoecious - male and female sporophylls borne on separate stobili
• C. Dioecipus - male and female sporophylls on different strobili and on different plants
• D. All of the above

Answer 1

Answer: (B)

Monoecious - male and female sporophylls borne on separate stobili

All of the pines are woody plants and monoecious.

When male and female sporophylls borne on separate stobili are called as monoecious.

In Pinus the male cones or staminate cones arise in clusters at the end of the long shoots, in the axil of scale leaves. Female cone arise single or in groups of 2-4 in the axil of scale leaves towards the apical end of the long shoots.