Amanita thiersii is a saprotrophic fungus expanding its range in the United States

@article{Wolfe2012AmanitaTI,
  title={Amanita thiersii is a saprotrophic fungus expanding its range in the United States},
  author={Benjamin E. Wolfe and Michael Kuo and Anne Pringle},
  journal={Mycologia},
  year={2012},
  volume={104},
  pages={22 - 33}
}
Although most species in the genus Amanita form ectomycorrhizal associations, a few are reported to be saprotrophs living in grassland habitats. Little is known about the ecology and distribution of these free-living Amanita species. We describe the ecology of Amanita thiersii, a species commonly collected in lawns throughout the Mississippi River Basin. Stable isotopes of carbon, transcriptomic sequences and patterns of growth on complex carbon sources provide evidence for A. thiersii as a… 
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