Union of stamens with carpels form a complex called

• (A) Gynostegium
• (B) Syngenesious
• (C) Gynandrium
• (D) None of the above

The union of stamens with carpels forms a structure known as the Gynandrium. This term specifically refers to the fusion of male and female reproductive parts in flowering plants.

Understanding the Options

• Gynostegium: This is a structure found in certain plants, particularly orchids, where stamens and pistils are fused.
• Syngenesious: This term describes a condition where stamens are united by their anthers but not with the carpels.
• Gynandrium: Correct answer; it indicates the fusion of stamens and carpels.
• None of the above: This option is incorrect since Gynandrium is a valid term.

In summary, the correct answer is (C) Gynandrium.