Ophioceras tenuisporum

Figure. Ophioceras tenuisporum (ILLS00000549). A–B. Ascomata. C–D. Asci. E–F. Ascospores. Scale bars: A–B = 500 µm; C–F = 10 µm.

Ophioceras tenuisporum Shearer, J.L. Crane & W. Chen, Mycologia 91(1): 149 (1999).
MycoBank: MB450668.

Ascomata perithecial, superficial to submerged, solitary to gregarious, globose to subglobose, black, 450–700 µm diam, with a cylindrical, black neck, 5000–20000 × 70–130 µm. Paraphyses unbranched, septate, hyaline. Asci 8-spored, unitunicate, cylindrical, 85–110 × 3.5–5.5 µm, with a refractive ring. Ascospores parallel in ascus, filiform to fusiform, slightly curved, 3-septate, not constricted at septum, hyaline to yellow, smooth, 70–95 × 1–2 µm. Asexual state unknown.

Typification: Holotype ILLS549. Ex-holotype culture ATCC56671.

Gene sequences: Unknown.

Specimens examined: Panama, Barro Colorado Island, Allee Creek, from a submerged twig, Mar. 1981, C.K. Augspurger, CS-652-1 (57433, ILLS549, culture ATCC56671).

Hosts/substrates: On submerged wood.

Distribution: Panama (Barro Colorado Island).

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.