*Generic Reference Type Author Year Title Secondary Title Volume Pages Publisher Secondary Author Notes Keywords Abstract Accession Number Journal Article Messuti, M.I.;Archer, A.W. 2009 ¿Cuántos taxones pueden incluirse teóricamente en el género Pertusaria? (How many taxa can theoretically be included in Pertusaria?) Glalia 2(3) 1-9 1 1 The number of taxa within the genus Pertusaria DC. is at present uncertain but, using a combination of the chararcters used for the systematic separation of the taxa such as chemistry, morphology and ascospore number and structure, yields a theorethical number of taxa, close to 1 550, as reflected in this work. 15884