Gaeumannomyces australiensis Hern.-Restr. & Crous, Stud. Mycol. 83: 29 (2016).
Asexual state phialophora-like. On MEA, hyphae branched, septate, hyaline to light brown, smooth, 1–4 μm diam. Conidiophores simple, branched or sparsely branched. Conidiogenous cells phialidic, terminal to intercalary, solitary or grouped, cylindrical to lageniform, straight or curved, hyaline to light brown, 6.5–27.5 × 1.5–3 μm, with a cylindrical to conical, refractive collarette, up to 2.5 μm long, 1–2 μm wide. Conidia lunate, allantoid, hyaline, 5–11 × 1–1.5 μm. Hyphopodia lobed, hyaline to brown, 18.5–25 × 21.5–23 μm.
Colonies on PDA 6.5 cm diam after 7 days at 25 °C; surface flat; aerial mycelium scarce, white; submerged mycelium dark; margin diffuse, uneven. Colonies on MEA 6 cm diam after 7 days at 25 °C; aerial mycelium cottony, light greenish grey; submerged mycelium black; margin diffuse, uneven; reverse center fuscous periphery amber white to white; colonies on OA 5.5 cm diam after 7 days at 25 °C, aerial mycelium scarce, white; submerged mycelium dark, smoke grey; margin diffuse; reverse light olivaceous grey (Description from Hernández-Restrepo et al., 2016).
Typification: Holotype CBSH-22581. Ex-holotype culture CBS141387 (CPC26058).
Gene sequences: KX306480 (ITS), KX306550 (28S), KX306619 (RPB1), KX306683 (TEF1).
Hosts/substrates: On Triticum aestivum (Poaceae).
Distribution: Australia.
Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.