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Two new species of Geastrum (Geastraceae, Basidiomycota) found in Brazil

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We have studied molecular and morphological data of Geastrum aculeatum sp. nov. and G. echinulatum sp. nov. These two species were found in Brazil's semi-arid region and in central Amazon. It is characterized by the nature of the mycelial layer with aculeate tufts. Geastrum echinulatum differs from G. aculeatum in the size of the spores, presence of subiculum and structural details in the mycelial tufts. The phylogenetic analyses were performed through parsimony and Bayesian methods, using the atp6 and LSU regions. These analyses confirm that both species are distinctly segregated from the other Geastrum species analyzed here.
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Keywords: GEASTRACEAE; MOLECULAR PHYLOGENETICS; NEOTROPICS; TAXONOMY

Document Type: Research Article

Publication date: 2013-05-01

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  • Nova Hedwigia is an international journal publishing original, peer-reviewed papers on current issues of taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants, including cyanophytes/cyanobacteria and fungi. The half-tone plates in Nova Hedwigia are known for their high quality, which makes them especially suitable for the reproduction of photomicrographs and scanning and transmission electron micrographs.
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