Search Result for "crustose": 
Wordnet 3.0

ADJECTIVE (1)

1. (of lichens) having a thin crusty thallus that adheres closely to the surface on which it is growing;
- Example: "crustose lichens"



WordNet (r) 3.0 (2006):

crustose
    adj 1: (of lichens) having a thin crusty thallus that adheres
           closely to the surface on which it is growing; "crustose
           lichens"