Tetradynamous conditions occur in:

Explanation

In tetradynamous condition, there are six stamens, 4 are long and 2 are short i.e., 4 + 2 arrangement of stamens. It is a characteristic feature of Cruciferae members. In Liliaceae, 6 stamens are arranged in whorls of 3 each (3 + 3). In Solanaceae, there are 5 stamens that are epipetalous and polyandrous. In Malvaceae, there are numerous stamens that are monadelphous .