crustose

[ kruhs-tohs ]
/ ˈkrʌs toʊs /

adjective Botany, Mycology.

forming a crusty, tenaciously fixed mass that covers the surface on which it grows, as certain lichens.
Compare foliose, fruticose.

Origin of crustose

1875–80; < Latin crustōsus covered with a crust, equivalent to crust(a) crust + -ōsus -ose1

Example sentences from the Web for crustose

British Dictionary definitions for crustose

crustose
/ (ˈkrʌstəʊs) /

adjective

biology having a crustlike appearance crustose lichens