Definition

Describing a type of lichen that has a thin, crusty layer that sticks closely to the surface it grows on, like rock or bark.

Example

The crustose lichen covered the old tree bark, creating a textured appearance.

Conversation

Have you ever seen those crustose lichens on the rocks near the river?

Yeah, they look really interesting and almost like they belong there!

I read that they have a thin thallus that sticks closely to the surface.

That makes sense; it helps them survive in harsh conditions.

Synonyms & Antonyms

Root Explanation

Crustose → It is formed from "crusta" (meaning crust) and the suffix "-ose" (meaning full of or having the quality of). The word "crustose" refers to something that is full of or resembling a crust, often used to describe certain types of lichens or algae that have a crust-like appearance.

Memory Tip

Think of 'crust' ('crusta') to remember that 'crustose' describes something that has a crust-like quality.

Visually Confused Words