Question

Three floral diagrams are given here. Their respective families are assigned in the answer key. Find out the families to which these diagrams belong to

• A. a - Liliaceae, b - Asteraceae, c - Solanaceae
• B. a - Asteraceae, b - Solanaceae, c - Brassicaceae
• C. a - Asteraceae, b - Fabiaceae, c - Poaceae
• D. a - Solanaceae. b - Poaceac, c - Fabaceae

Answer 1

The correct option is B a - Asteraceae, b - Solanaceae, c - Brassicaceae

Diagram a is showing,
small 5 sepals, 5 petals in valvate aestavation, 5 stamens in epipetalous condition (stamens are fused with petals) and ovary with basal placentation. These characteristics match with flower of family Asteraceae.
Diagram b is showing,
large 5 united sepals in valvate aestivation, 5 united petals in valvate aestivation, 5 stamens in epipetalous condition (stamens are fused with petals), bicarpellary ovary with many ovules. These characteristics match with flower of family Solanaceae.
Diagram c is showing,
4 sepals in two whorls with imbricate aestivation, 4 petals in valvate aestivation, 6 stamens in two whorls in tetradynamous condition (4 stamens longer than other two), bicarpellary ovary with false septation showing two locules. These characteristics match with flower of family Brassicaceae.
Therefore, the correct option is B.