Question:
Mucilaginous disc is useful for attachment with the substratum in the members of ______________ lichen.
Mucilaginous disc is useful for attachment with the substratum in the members of ______________ lichen.
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Foliose lichens are loosely attached and leaf-like in appearance.
Updated On: Mar 6, 2026
- foliose
- crustose
- shruby
- fruticose
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding types of lichens.
Lichens are classified into crustose, foliose, and fruticose based on their thallus structure.
Step 2: Feature of foliose lichens.
Foliose lichens have leaf-like thalli and attach to the substratum with the help of rhizoids and mucilaginous discs.
Step 3: Comparison with other types.
Crustose lichens are tightly adhered to the substratum without such discs.
Fruticose lichens are shrubby and attach by a holdfast.
Step 4: Conclusion.
Thus, mucilaginous disc is seen in foliose lichens.
Lichens are classified into crustose, foliose, and fruticose based on their thallus structure.
Step 2: Feature of foliose lichens.
Foliose lichens have leaf-like thalli and attach to the substratum with the help of rhizoids and mucilaginous discs.
Step 3: Comparison with other types.
Crustose lichens are tightly adhered to the substratum without such discs.
Fruticose lichens are shrubby and attach by a holdfast.
Step 4: Conclusion.
Thus, mucilaginous disc is seen in foliose lichens.
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