A new species and a new combination of truffle-like fungi in the Geopora-Tricharina lineage from North America: Terracavicola echinospora gen. et sp. nov. and Geopora lateritia comb. nov.
Par Grupe II A.C., Kraisitudomsook N., Healy R., Zelmanovich D., Anderson C., Guevara G., Trappe J., Smith M.E.

Vol. 11 (2) – 06 avril 2019

doi: 10.25664/art-0257

 Open Access


Résumé (anglais) : 

Molecular investigations into two truffle-like fungi within the Pyronemataceae (Pezizales, Ascomycota) revealed hidden diversity that required further clarification of generic and species boundaries of the hypogeous, ptychothecial members of this family. Here we describe Terracavicola echinospora gen. et. sp. nov. from Mexico and we transfer Pachyphlodes lateritia from the western United States into the genus Geopora as Geopora lateritia comb. nov. We provide molecular phylogenetic evidence based on ITS and 28S ribosomal DNA for the placement of both taxa and provide detailed morphological analyses. We also discuss the taxonomy of other morphologically similar taxa in Pyronemataceae with an emphasis on the lineage that includes Geopora, Hoffmannoscypha, Picoa, and Tricharina.

The Pyronemataceae (Pezizales, Ascomycota) is a morphologically and ecologically diverse group of fungi that has proven taxonomically challenging (Hansen et al., 2013; Perry et al., 2007). The family includes taxa with a wide variety of nutritional modes, including ectomycorrhizae […]