Scytalidium tongrenense S. Q. Tong & Zhi. Y. Zhang 2025, sp. nov.

15.Scytalidium tongrenenseS. Q. Tong & Zhi. Y. Zhang sp. nov. Fig. 5 Type. CHINA • Guizhou, Tongren, Yanhe County, Qiaojia Town, 28.28°N, 108.44°E, soil, 5 July 2023, Shuo-Qiu Tong (holotype HMAS 354098, dried culture; ex-type CGMCC 3.28994, ibid., SQT 13) Etymology. The epithet refers to the type location. Description. Culture characteristics (14 days at 25 ° C): Colonies on PDA attaining 17–34 mm diam., flat, margin fimbriate, floral white (1 A 2) to white (1 A 1). Reverse floral white (1 A 2) to white (1 A 1). Colonies on SNA attaining 66–68 mm diam., flat, margin entire, pale gray (30 B 2). Reverse pale gray (30 B 2). Chlamydospore-like cells yellow-brown to dark brown, oblong to globose, ellipsoidal, subcylindrical, guttulate, or irregular, 0–1 - septate, thick-walled, smooth, catenate, 5.5–12 × 4.5–6 µm (avg. 8.1 × 5.2 μm, n = 30). Arthroconidia unknown. Sexual morph unknown. Geographical distribution. Guizhou Province, China. Additional material examined. CHINA • Guizhou, Guiyang, Huaxi District, Shiban Town, 26.46°N, 106.65°E, soil, 8 July 2022, Shuo-Qiu Tong, SQT 14. GenBank numbers. SQT 13 – SQT 14, ITS: PV 890028 – PV 890029, LSU: PV 890035 – PV 890036. Notes. Phylogenetic analysis showed that two new isolates (SQT 13 and SQT 14) clustered in a single subclade with high supported value (100 / 1) and are sister to S. album, S. assmuthi, S. aurantiacum, S. rodionovae, S. circinatum, and S. terrigenum (Figs 1, 2). However, the distinctions between S. tongrenense and S. album, S. assmuthi, S. aurantiacum, S. rodionovae, S. circinatum, and S. terrigenum are provided in their respective notes. Scytalidium tongrenense was isolated from soil in a pepper cultivation area and is likely to have a saprophytic lifestyle.