Sydowiella Petr., Annls mycol. 21(1/2): 30 (1923)

MycoBank number: MB 5312; Index Fungorum number: IF 5312; Facesoffungi number: FoF 02136; 9 morphological species (Species Fungorum 2020), 5 species with sequence data.

Type species – Sydowiella fenestrans (Duby) Petr.

Notes – Sydowiella are mild pathogens or saprobes characterized by solitarily, erumpent ascomata without stromatic tissues and 2-celled ascospores (Kobayashi 1970). Sydowiella species are mostly distributed in temperate regions (Farr & Rossman 2018). Betula, Centaurea, Dryas, Epilobium, Juncus, Rubus, and Urtica are the common host genera from which Sydowiella species have been collected. In this entry we illustrate the sexual morph of Sydowiella fenestrans. The asexual morph of Sydowiella has not been reported.

Figure 239 – Sydowiella fenestrans (Material examined – GERMANY, Hessen, Wiesenwald pr. Oestrich (Nassau), on Epilobii angustifolii, Fuckel, 1894, F109251, holotype). a Herbarium specimen. b, c Ascomata on host surface. d Cross section of ascoma. e Peridium. f-h Asci. i-k Ascospores. Scale bars: b, c = 200 µm, d = 100 µm, e-h = 20 µm, i-k = 10 µm.

Species

  • Sydowiella fenestrans