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A study of the pruinose species of Hypogymnia (Parmeliaceae, Ascomycota) from China

Abstract Six pruinose species of Hypogymnia are reported in this paper, including one new species Hypogymniapruinoidea. The type of Hypogymnia pseudopruinosa was found to be a mixture with H. laccata. Hypogymnia pseudopruinosa is therefore typified with a lectotype, and the description of H. pseudopruinosa is revised. Distributions of the six pruinose species are given and discussed. Comments on differences and similarities between pruinose species of Hypogymnia are made. Diagnostic characters of each species, and a key to the pruinose species of Hypogymnia in China, are also provided.