New records of crustose and microfoliose corticicolous lichens in Caatinga vegetation of the semi-arid region in Alagoas

(New records of crustose and microfoliose corticicolous lichens in Caatinga vegetation of the semi-arid region in Alagoas). A total of 25 species are here reported for the first time for Alagoas State, with one new record for the Northeastern Region of Brazil and four new records for Brazil. A list of all known species for the semi-arid region in Alagoas is presented. Sampling took place near the municipality of Sao Jose da Tapers, in the semi-arid region of Alagoas, where a very rich Caatinga vegetation of trees and shrubs occurs.