Greetings from belowground: two new species of truffles in the genus Pachyphlodes (Pezizaceae, Pezizales) from México

By

Pina Paez, Carolina
Healy, Rosanne
Guevara-Guerrero, Gonzalo
Garibay-Orijel, Roberto
Castellano, Michael A.
Cazares, Efren.
Trappe, James M.

Type

Article

Date of Publication

2021

Original Publication

Journal of Hymenoptera research

Volume

82

Pages

159--171

Subjects

Ascomycota , hypogeous , new taxa , Sequestrate fungi , systematics , Truffles

Contributed by

Pensoft Publishers

Language

English

Published by

Washington, D.C International Society of Hymenopterists

Identifiers

DOI: https://doi.org/10.3897/mycokeys.82.67685

 

Abstract

Pachyphlodes is a lineage of ectomycorrhizal, hypogeous, sequestrate ascomycete fungi native to temperate and subtropical forests in the Northern Hemisphere. Pachyphlodes species form ectomycorrhizae mainly with Fagales hosts. Here we describe two new species of Pachyphlodes, P. brunnea, and P. coalescens, based on morphological and phylogenetic analysis. Pachyphlodes brunnea is distributed in the states of Tamaulipas and Nuevo León in northern México, occurring with Quercus and Juglans species. It is characterized by its dark brown peridium, white gleba, and spores with capitate columns. Pachyphlodes coalescens is distributed in the states of Michoacán and Tlaxcala in central and southwestern México co-occurring with Quercus and is distinguished by its reddish-brown peridium, light yellow gleba, and spore ornamentation. Both species, along with P. marronina, constitute the Marronina clade. This clade contains North American species characterized by a brown peridium and spores ornamented with capitate spines to coalesced spine tips that form a partial perispore.