Gymnopus fragillior. Mid-stipe caulocystidia. A Cluster of caulocystidia B Small individual C Double caulocystidia D–G Individual caulocystidia. Standard bars = 10 µm. WTU-F-9305.

 
 
  Part of: Petersen RH, Hughes KW (2016) Micromphale sect. Perforantia (Agaricales, Basidiomycetes); Expansion and phylogenetic placement. MycoKeys 18: 1-122. https://doi.org/10.3897/mycokeys.18.10007