Hydronectria is a genus of fungi in the class Sordariomycetes. The relationship of this taxon to other taxa within the class is unknown (incertae sedis). A monotypic genus, it contains the single species Hydronectria kriegeriana, described by German mycologist Wilhelm Kirschstein in 1925.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0