<i>Rhytidiella moriformis</i> n. gen., n. sp. causing rough-bark of <i>Populus balsamifera</i>

Abstract

Rhytidiella moriformis n. gen., n. sp. is a parasite which causes perennial rough-bark of Populus balsamifera L. The fungus produces perfect and imperfect states in nature. Cultural studies show that the macroconidia belong to the form-genus Phaeoseptoria Speg.