Question

Perianth refers to

• A. Nonessential floral organs
• B. Essential floral organs
• C. Fused stamens and carpels
• D. Undifferentiated calyx and corolla

Answer 1

The correct option is D Undifferentiated calyx and corolla

When the calyx and corolla are indistinct and undifferentiated, the resultant whorl is called the perianth.

A. Accessory whorls of calyx, corolla and perianth are non-essential floral organs as they are not directly involved in the process of fertilization.

B. Androecium and gynoecium are considered to be essential floral organs because they form the male and female gametes respectively.

C. Fused stamens with style and stigma of carpel form gynostegium.

D. Undifferentiated calyx and corolla are called perianth.

Hence, the correct answer is 'Perianth'.