Kirschner, R., Lotz-Winter, H. and Piepenbring, M. 2020.

A new species of the elm powdery mildew species complex (Erysiphaceae) on Chinese elm (Ulmus parvifolia) in East Asia segregated from Erysiphe ulmi

. Phytotaxa. 447, 4 (Jun. 2020), 276–282. DOI:https://doi.org/10.11646/phytotaxa.447.4.5.