A new genus to accommodate Gymnopus acervatus (Agaricales)

Mycologia. 2010 Nov-Dec;102(6):1463-78. doi: 10.3852/09-318. Epub 2010 May 26.

Abstract

Phylogenies based on ITS and LSU nrDNA sequences show Agaricus (Gymnopus) acervatus as unique within the Gymnopus/Rhodocollybia complex. These phylogenies imply that a separate genus is necessary, and Connopus is proposed. Infraspecific morphological and DNA-based variation within C. acervatus suggests that a western North American clade might be reproductively isolated from the eastern North American/Scandinavian clade and that in this species complex the European and eastern North American clade might be conspecific. A Scandinavian exemplar is selected for bar-coding. Two GenBank sequences with name-phylogenetic placement inconsistencies are identified.

MeSH terms

  • Agaricales / classification*
  • Agaricales / genetics
  • Agaricales / isolation & purification*
  • DNA, Fungal / genetics
  • DNA, Ribosomal Spacer / genetics
  • Molecular Sequence Data
  • Phylogeny
  • Trees / microbiology

Substances

  • DNA, Fungal
  • DNA, Ribosomal Spacer