Question:
Typical lignified trichomes with sclereid bases are observed in the microscopic examination of
Typical lignified trichomes with sclereid bases are observed in the microscopic examination of
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Nux vomica = Lignified, silky-looking trichomes.
Updated On: May 19, 2026
- Datura leaf
- Senna leaf
- Fennel fruit
- Nux vomica seed
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Trichomes are epidermal outgrowths that vary significantly in structure between different plant parts and species.
Step 2: Meaning
Lignified trichomes are hardened with lignin, appearing thick-walled under a microscope.
Step 3: Analysis
The testa (seed coat) of Nux vomica is covered with numerous closely appressed, thick-walled, lignified covering trichomes with characteristic pitted, sclereid-like bases. These give the seed its silky appearance.
Step 4: Conclusion
Such unique lignified trichomes are a diagnostic hallmark of Nux vomica seeds.
Final Answer: (D)
Trichomes are epidermal outgrowths that vary significantly in structure between different plant parts and species.
Step 2: Meaning
Lignified trichomes are hardened with lignin, appearing thick-walled under a microscope.
Step 3: Analysis
The testa (seed coat) of Nux vomica is covered with numerous closely appressed, thick-walled, lignified covering trichomes with characteristic pitted, sclereid-like bases. These give the seed its silky appearance.
Step 4: Conclusion
Such unique lignified trichomes are a diagnostic hallmark of Nux vomica seeds.
Final Answer: (D)
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