Ana María Crespo de las Casas (born 30 March 1948, Santa Cruz de Tenerife) is a Spanish lichenologist noted for studying the phytosociology, taxonomy and floristics of Mediterranean lichens.[1] She was awarded the 2012 Acharius Medal from the International Association for Lichenology for lifetime achievements in lichenology,[2] and the genera Crespoa,[3] Cresponea and Cresporhaphis were named in her honor.[4]
The standard author abbreviation A.Crespo is used to indicate this person as the author when citing a botanical name.[5]