Gaeumannomyces floridanus Hern.-Restr. & Crous, Stud. Mycol. 83: 34 (2016).
MycoBank: MB816894.
Asexual state phialophora-like. On MEA, hyphae branched, septate, hyaline to brown, smooth, 1.7–5 μm diam. Conidiophores branched, hyaline to light brown. Conidiogenous cells phialidic, terminal to intercalary, solitary or grouped, cylindrical to lageniform, straight or curved, hyaline to light brown, 7–14.5 × 2–3.5 μm, with an inconspicuous collarette, up to 2.5 μm long, 1–2 μm wide. Conidia lunate, allantoid or fusiform, slightly to strongly curved, hyaline, 5–11 × 1–1.5 μm. Hyphopodia lobed, hyaline to brown, 18–27 × 14.5–26.5 μm. Sexual state unknown.
Colonies on PDA 8.5 cm diam after 7 days at 25 °C; aerial mycelium scarce, white; submerged mycelium greyish sepia; margin diffuse; reverse greyish sepia. Colonies on MEA 7 cm diam after 7 days at 25 °C; aerial mycelium cottony, white; submerged mycelium mouse grey; margin diffuse; reverse fuscous; Colonies on OA 8.5 cm diam after 7 days at 25 °C, aerial mycelium moderate, mouse grey; submerged mycelium dark; margin diffuse, uneven; reverse mouse grey, olivaceous grey, colourless to periphery (Description from Hernández-Restrepo et al., 2016).
Typification: Holotype CBSH-22577. Ex-holotype culture CBS141378 (CPC26037).
Gene sequences: KX306491 (ITS), KX306561 (28S), KX306626 (RPB1), KX306693 (TEF1).
Hosts/substrates: On Stenotaphrum secundatum (Poaceae).
Distribution: USA.
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.