Thesis

Biodiversity and phylogeny of Marasmius from Madagascar

Prior to this monographic treatment, limited research on the genus Marasmius (Basidiomycota, Agaricales) had been conducted in Madagascar. Based on field work in January 2013 and January-February 2014, which generated 45 specimens of Marasmius sensu stricto, supplemented by herbarium exsiccatae and published literature, 35 species of Marasmius are documented from Madagascar. Of these, 5 species are recognized herein as new to science, viz., Marasmius madagascariensis, M. rubrobrunneus, M. dendrosetae, M. sokola and M. tanaensis; an additional 11 species represent new distribution records for Madagascar. Comprehensive descriptions based on morphological and molecular sequences (ITS) data, illustrations and color photographs, comparisons with allied taxa, a key to aid in identification, and phylogenetic inferences are provided.

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