Gaeumannomyces amomi Bussaban, Lumyong, P. Lumyong, McKenzie & K.D. Hyde, Nova Hedwigia 73(3-4): 488 (2001).
MycoBank: MB374849.
Ascomata perithecial, superficial, solitary to gregarious, globose to subglobose, olivaceous black, 500–650 × 300–400 µm, with a cylindrical neck. Paraphyses septate, hyaline, 87–140 × 2–3 µm. Asci 8-spored, unitunicate, clavate, 100–130 × 12.5–15 µm, with a refractive ring. Ascospores parallel in ascus, filiform to fusiform, slightly curved, 3–6-septate, not constricted at septum, hyaline, smooth, 70–100 × 4–5 µm. Asexual state unknown.
Colonies on PDA and CMA 9 cm diam after 7 days at 22 °C; surface greenish olivaceous; aerial mycelium dense or sparse (Description from Bussaban et al., 2001).
Typification: Holotype CMUZE0002 (BCC4066).
Gene sequences: DQ341472 (18S), AY265318 (ITS), DQ341493 (28S), KX306679 (TEF1).
Hosts/substrates: On leaves of Amomum siamense and Alpinia malaccensis (Zingiberaceae).
Distribution: Thailand.
Notes: This is the only species of Gaeumannomyces associated with Zingiberaceae.
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.