Fungalpedia – Note 2545, Erysiphe
Erysiphe. R. Hedw. ex DC.
Citation when using this data: Boonmee S et al. 2021 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Erysiphaceae, Helotiales, Leotiomycetidae, Leotiomycetes, Pezizomycotina, Ascomycota, Fungi
Notes: Erysiphe is the largest genus in the Erysiphaceae and contains 450 species (Takamatsu et al. 2015). It includes five tribes and two basal genera, which have been described by Mori et al. (2000) and Takamatsu et al. (2015). Some species cause serious diseases on cultivated plants, such as cereals, flowers, ornamentals (Glawe 2008; Braun and Cook 2012; Takamatsu et al. 2015). In this study, a new species of Erysiphe found on Salix gracilistyla var. melanostachys (black pussy willow) in Korea is described and illustrated based on morphological characters and molecular evidence.
Type species: Erysiphe polygoni DC., in Lamarck & de Candolle, Fl. franç., Edn 3 (Paris) 2: 273 (1805).
Other accepted species: Species Fungorum – search Erysiphe.
Figure 1 – Erysiphe salicicola (CNUFC PWS1, holotype). a Symptoms of powdery mildew on black pussy willow (Salix gracilistyla var. melanostachys). b Chasmothecia on the leaf-surface. c–g, i Young and mature chasmothecium with appendages. h Appendages. j–p Asci containing ascospores. q–s Conidiophores. t, u Conidia and conidial germ tubes. v, w Appressoria (Fig. b: observed under a stereomicroscope; Figs. c–w: light microscope). Scale bars: c–f, h, j–w = 20 μm, g, i = 50 μm.
References
Entry by
Saranyaphat Boonmee, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
Published online 6 June 2026