Concept: This question tests the knowledge of floral formulae, specifically for the family Liliaceae, which is a monocot family.

Why (D) is correct: The floral formula for Liliaceae is represented as $\mathrm{Br}\oplus {\text{P}}_{3+3}{\mathrm{A}}_{3+3}{\underline{G}}_{(3)}$. Let's break it down:

• $\mathrm{Br}$: Indicates the presence of bracts.
• $\oplus$: Represents actinomorphic symmetry (radial symmetry).
• ${\text{P}}_{3+3}$: Indicates perianth (undifferentiated calyx and corolla) with 6 tepals arranged in two whorls of 3 each.
• ${\mathrm{A}}_{3+3}$: Represents androecium (stamens) with 6 stamens arranged in two whorls of 3 each.
• ${\underline{G}}_{(3)}$: Represents gynoecium (pistil) with 3 carpels, syncarpous (fused, indicated by parenthesis), and superior ovary (indicated by the underline below G).

Why other options are wrong:

• (A) ${\%}^{\pi }{\mathrm{P}}_{3+3}{\mathrm{A}}_{3+3}{\mathrm{G}}_{(3)}$: The symbol $\%$ indicates zygomorphic symmetry, which is incorrect for Liliaceae. The $\pi$ symbol is not standard.
• (B) $\%{\mathrm{P}}_6{\mathrm{A}}_6{\mathrm{G}}_3$: Incorrect symmetry and doesn't show whorl arrangement or superior ovary.
• (C) ${\mathrm{P}}_6{\mathrm{A}}_6{\mathrm{G}}_3$: Lacks symmetry, bract, and proper representation of whorls and superior ovary.

NEET Tip: Memorize the floral formulae for key families like Fabaceae, Solanaceae, and Liliaceae, as they are frequently asked. Pay close attention to symmetry, number of parts, their arrangement (whorls), fusion (parentheses), and ovary position (underline above or below G).

Correct Answer: (D)