cryptogamic crust

cryptogamic crust
   A type of microbiotic crust consisting of a thin, biotic layer at the ground surface composed predominantly of cryptogams (i.e., algae, lichen, mosses, lichens and liverworts); most commonly found in semiarid or arid environments.
   Compare: microbiotic crust.
   SW & SS

Glossary of landform and geologic terms. 2013.

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