Some freshwater ascomycetes from Mexico

摘要

As part of a study of freshwater ascomycetes occur-ring on submerged Pinus sp. wood panels in two canals of Xochimilco, Mexico, Ascotaiwania lignicola, Jahnula poonythii, Ophioceras commune and Savoryella lignicola are reported from this country for the first time. Notes on the morphological characteristics of these species are given, including illustrations.