crustose

/ˈkrʌstoʊs/
adjective
  1. Describing a lichen or fungus that grows flat and tightly attached to a surface, like a crust.
    • Crustose lichens cover the rocks in the forest with a colorful, flaky layer.
    • Unlike leafy lichens, crustose lichens cannot be peeled off the surface.
    • The biologist identified the crustose growth on the tree bark as a type of lichen.
Antonyms
What does "crustose" mean? | whatsthatwordmean | whatsthatwordmean