Mycological Progress

, Volume 12, Issue 1, pp 151–155

Phylogenetic analysis of rDNA sequences indicates that the sequestrate Amogaster viridiglebus is derived from within the agaricoid genus Lepiota (Agaricaceae)

Short Communication

DOI: 10.1007/s11557-012-0841-y

Cite this article as:
Ge, ZW. & Smith, M.E. Mycol Progress (2013) 12: 151. doi:10.1007/s11557-012-0841-y


The rare sequestrate fungus Amogaster viridiglebus is known from only one collection in California where it was discovered among Populus roots. Based on sporocarp coloration and spore morphology, this sequestrate taxon was putatively considered to be an ectomycorrhizal member of the Boletales. However, no molecular data were previously available to definitively determine the closest relatives of this fungus. Here we revisit the morphology of Amogaster viridiglebus and present a phylogenetic analysis based on ITS and 28S ribosomal DNA. Our phylogeny indicates that Amogaster viridiglebus is nested in the genus Lepiota, suggesting that this rare species has a saprobic trophic mode and does not form ectomycorrhizae with plants. A new combination, L. viridigleba, is made based on these phylogenetic results.


Agaricales Fungal systematics Phylogeny Lepiota Sequestrate fungi 

Supplementary material

11557_2012_841_MOESM1_ESM.doc (59 kb)
Table 1Species information and GenBank accession numbers for sequences used in the phylogenetic analysis. (DOC 59 kb)

Copyright information

© German Mycological Society and Springer 2012

Authors and Affiliations

  1. 1.Department of Plant PathologyUniversity of FloridaGainesvilleUSA
  2. 2.Kunming Institute of BotanyChinese Academy of SciencesKunmingChina

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