Barretomyces calatheae (D.J. Soares, F.B. Rocha & R.W. Barreto) Klaubauf, Lebrun & Crous, Stud. Mycol. 79: 104. 2014. (Type species).
MycoBank: MB 810206.
≡ Pyriculariopsis calatheae D.J. Soares, F.B. Rocha & R.W. Barreto, Mycological Progress 10: 317. 2011.
Asexual state pyricularia-like. On SNA, hyphae branched, septate, hyaline, smooth, 2–3.5 µm diam. Conidiophores macronematous, simple, unbranched, solitary, erect, straight to curved, 2–9-septate, medium brown, smooth, 70–160 × 4–6 µm. Conidiogenous cells integrated, terminal to intercalary, light brown to medium brown, smooth, 20–70 × 5–6 µm, with several protruding denticles, 1–3 × 1–2 µm. Conidia solitary, obclavate, 2-septate, unequally colored, smooth, 28–32 × 6–7 µm, with a truncate hilum; apical cell hyaline to light brown, 9–12 µm long; basal cell hyaline to light brown, 7–9 µm long; median cell, dark brown; hilum 1–1.5 µm diam. Sexual state unknown.
Colonies on PDA 2.8 cm diam after 7 days at 25 °C in dark; surface whitish, transparent with vinaceous-buff center, irregular in shape, felty. Colonies on MEA 3 cm diam after 7 days at 25 °C in dark; surface white, round, raised, with a thick, furry texture. Colonies on CMA 3.3 cm diam after 7 days at 25 °C in dark; surface white to pale mouse grey, round with entire edge, flat, felty, exuding droplets. Colonies on OA 3.2 cm diam after 7 days at 25 °C in dark; surface white with a mouse grey center (Description from Klaubauf et al., 2014).
Typification: Holotype VIC30699. Ex-holotype culture CBMAI1060.
Gene sequences: KM484950 (28S), KM484831 (ITS), KM485162 (ACT), KM485231 (CAL), KM485045 (RPB1).
Hosts/substrates: On Calathea longifolia (Marantaceae).
Distribution: Brazil.