A Study on the Identification of Erysiphaceae Based on Morphological Characteristics in Ardabil Province, Iran

In order to identify the species and host range of Erysiphaceae fungi in Ardabil province, infected plant specimens belonged to 47 plant species were collected during 2012-2013 and the species identified according to the new treatment available in taxonomy of this family. Totally, 32 species and 9 genera belonged to Erysiphaceae were identified and described. Among taxa, two species Erysiphe howeana and Neoerysiphe galeopsidis on Oenothera sp. and Ballota nigra were reported for the first time in Iran, respectively. Two species Golovinomyces cf. orontii and Golovinomyces macrocarpus were introduced as powdery mildew agent on Viola tricolor and Tanacetum balsamita in Iran, respectively. Previously these species were reported as Oidium violae and Erysiphe cichoracearum, respectively. Also, 19 species are new for Ardabil province mycoflora. Among 32 identified species in this study, 10 fungal species had infected more than one host plant that Blumeria graminis had the widest range with five host plant species.