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Selaginella leaf have an outgrowth on ad...

Selaginella leaf have an outgrowth on adaxial surface called

A

Ligule

B

Indusium

C

Stipule

D

Petiole.

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks about a specific outgrowth found on the adaxial (upper) surface of Selaginella leaves. 2. **Identifying the Options**: The options provided are: - 1st: Ligule - 2nd: Inducium - 3rd: Stipule - 4th: Petiole 3. **Analyzing Selaginella Leaves**: Selaginella is a genus of vascular plants known for their small, leaf-like structures. The leaves of Selaginella are characterized by the presence of a specific outgrowth. 4. **Identifying the Correct Outgrowth**: The outgrowth on the adaxial surface of Selaginella leaves is known as a "ligule." This is a small, tongue-shaped appendage located at the base of each young leaf. 5. **Additional Information**: The ligule is associated with a structure called "glossopodium," which consists of secretory cells located at the base of the ligule. 6. **Selecting the Correct Answer**: Based on the analysis, the correct answer to the question is option 1: Ligule. **Final Answer**: The outgrowth on the adaxial surface of Selaginella leaves is called a ligule. ---
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