Explain the types of stamens based on their length of stamens.

Explanation

Types of stamens based on length:
1. Didynamous (di-two, dynamis-strength): Four stamens in which two with long filaments and two with short filaments. Eg: Lamiaceae, Ocimum. If all four stamens are in two equal pairs then the condition is called didynamous.
2. Tetradynamous (tetra-four): Six stamens of which four with long filaments and two with short filaments. Eg: Brassicaceae (Brassica).
Heterostemonous: Stamens are of different lengths in the same flower. Eg: Cassia, Ipomoe.