Chaleuria

Chaleuria is a genus of lichens belonging to the family Roccellaceae. These lichens are characterized by their crustose growth form, typically occurring on rock substrates, often in coastal environments. Their thalli are usually pale in color, ranging from whitish-gray to pale yellow-brown.

Members of the Chaleuria genus are distinguished by their chemical composition, particularly the presence of depsides and depsidones. Identification often requires microscopic examination of the ascospores and other anatomical features. The exact number of species within the genus can vary depending on taxonomic interpretations.

Chaleuria species play a role in coastal ecosystems, contributing to primary production and weathering of rock surfaces. Further research is ongoing to fully understand the biodiversity and ecological significance of this genus.