Question

Floral formula of mustard flower:

• A. 1
• B. 2
• C. 3
• D. 4

Hint:

{Tetradynamous} ($A_{2+4}$) is the diagnostic feature of the Mustard family (Brassicaceae).

Answer 1

The Correct Option is C

Step 1: Identify the Plant Family:
Mustard belongs to the family Brassicaceae (Cruciferae).
Step 2: Recall Floral Characteristics of Brassicaceae:
Symmetry: Actinomorphic ($\oplus$).
Sexuality: Bisexual ($\male\female$).
Calyx (K): 4 sepals, arranged in two whorls of 2 (2+2).
Corolla (C): 4 petals, cruciform arrangement.
Androecium (A): 6 stamens, tetradynamous condition (2 outer short + 4 inner long), i.e., $A_{2+4}$.
Gynoecium (G): Bicarpellary, syncarpous, superior ovary with a false septum (replum). Written as G$_{\underline{(2)}}$.
Bracts: Usually Ebracteate (Ebr).

Step 3: Match with Options:
Option (C) correctly lists: Ebr, Ebrl, $\oplus$, $\male\female$, K$_{2+2}$, C$_{4}$, A$_{2+4}$, G$_{\underline{(2)}}$.