Which plant family is botanically characterized by a perianth composed of 6 tepals arranged in two whorls (3+3), 6 stamens (3+3) epiphyllous, and a tricarpellary, syncarpous, superior trilocular ovary with axile placentation?
Answer and explanation
Correct answer: D. Liliaceae
- Step 1: Liliaceae is a representative monocotyledonous family.
- Step 2: In Liliaceae, sepals and petals are undifferentiated, forming a perianth of 6 tepals arranged in two whorls: .
- Step 3: The 6 stamens are epiphyllous (attached to tepals): .
- Step 4: The gynoecium is tricarpellary, syncarpous, superior, trilocular with numerous ovules on axile placentation: . Common examples include Allium, Aloe, Asparagus, and Colchicum.
Answer
Liliaceae
Why not the others: 'Solanaceae' has 5 sepals, 5 petals, and 2 carpels (); 'Fabaceae' has 5 petals with papilionaceous corolla, diadelphous stamens, and 1 carpel (); 'Brassicaceae' has 4 cruciform petals, 6 tetradynamous stamens, and 2 carpels ().
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