Catillaria fungoides (Catillariaceae; Lecanoromycetes) an Inconspicuous Crustose Lichen Previously Overlooked in Eastern North America

Catillaria fungoides is newly reported for North America based on collections from the temperate eastern United States. A detailed description based on North American material is provided, the distribution is mapped, and images are provided. The species is likely widespread but overlooked due to its inconspicuous appearance.