Rim lichen
Scientific name: Squamarina
Rim lichen
Scientific name: Squamarina
Description
Rim lichen is a group of lichens known for their squamulose (scale-like) thallus. They typically grow on calcareous rocks or soil in dry, sunny areas. Some species form rosettes or have a crustose appearance. Their upper surface can range from whitish to yellowish or grayish-green. Rim lichen produces various lichen substances that contribute to their distinctive coloration and ecological roles.