Multiple choice

Which of the following lichens is composed of overlapping scales?

  1. Crustose

  2. Foliose

  3. Fruticose

  4. Squamulose

  5. Leprose
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D Correct answer
Explanation

A squamulose lichen is a lichen that is composed usually overlapping "scales" called squamules. If they appear raised from the substrate and appear leafy, the lichen may appear to be a foliose lichen, but the underside does not have a "skin" (cortex), as foliose lichens do.

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