Rarely seen extreme host specificity across the Neotropics between the lichens Pyrenula psoriformis, Pyrenula sauria sp. nov. (Eurotiomycetes: Pyrenulaceae), and Bonellia trees.

In tropical ecosystems specificity of lichen species to their phorophyte is rarely seen. Instead, lichen communities show a loose preference for groups of tree species that share bark characteristics. In this study we analyzed the lichens present on more than 200 trees from 57 species in a Mexican t