Synonymy:
Alphitomorpha cynoglossi Wallr., Ann. Wetter. Gesellsch. Ges. Naturk. 4: 240 (1819)
Erysiphe cynoglossi (Wallr.) U. Braun, Mycotaxon 15: 136 (1982)
Erysiphe artemisiae var. cynoglossi (Wallr.) Ialongo, Mycotaxon 44(1): 255 (1992)

Alphitomorpha horridula Wallr., Fl. crypt. Germ. (Norimbergae) 2: 755 (1833)
Erysiphe horridula (Wallr.) Rabenh., Deutschl. Krypt.-Fl. (Leipzig) 1: 235 (1844)
Tigria horridula (Wallr.) Trevis., Spighe Paglie: 22 (1853)

Erysiphe asperifoliorum var. anchusae U. Braun, Nova Hedwigia 34(3 & 4): 694 (1981)
Erysiphe cynoglossi var. anchusae (U. Braun) U. Braun, Mycotaxon 15: 136 (1982)

Position in classification:
Golovinomyces, Erysiphaceae, Helotiales, Leotiomycetidae, Leotiomycetes, Ascomycota, Fungi

Note:
We aim to keep taxonomic opinions up to date, but errors or delays can occur. Please report them to our curator.