The document discusses the structure of flowers and development of male gametophytes. It describes the four cycles of a typical flower as calyx, corolla, androecium, and gynoecium. It also details the structure of stamens, layers of the microsporangial wall, microsporogenesis, and the development of male gametophytes from microspores within the anther.

1. “Structure of flower and development of male gametophyte”
By
Mr. Mukesh Pandey
Assistant Professor (Botany)
C.U. Shah Institute of Science
Ashram Road, Ahmedabad.

2. STRUCTURE OF A TYPICAL FLOWER

3. CYCLES OF A TYPICAL FLOWER
 There are four cycles in a typical flower.
1. Calyx : Group of Sepals
2. Corolla : Group of Petals
3. Androecium : Group of Stamens
4. Gynoecium : Group of Carpels

4. STRUCTURE OF STAMEN

5. T.S. OF ANTHER

6. LAYERS OF MICROSPORANGIAL WALL

7. MICROSPOROGENESIS

8. DEVELOPMENT OF MALE GAMETOPHYTE

9. DEVELOPMENT OF MALE & FEMALE GAMETOPHYTE