Sirococcus silvicola (Ning Jiang) Ning Jiang comb. nov. Basionym. Gnomoniopsis silvicola Ning Jiang, Fungi 7 (10, no. 792): 14 (2021). Materials examined. China • Jiangxi Province, Ganzhou City, Ruijin City, on healthy nut of Castanopsis carlesii, 15 October 2025, Yan Liu (tissue-isolated culture CFCC 71885). Notes. Gnomoniopsis silvicola was established from leaf spots of Castanopsis hystrix and Quercus serrata in China (Jiang et al. 2021 b). Here, we identified an isolate from the healthy nut of Castanopsis carlesii as this species and combined this fungus in the genus Sirococcus. Hence, C. carlesii is a new host for Sirococcus silvicola.

Published as part of Jiang, Ning, Wijayawardene, Nalin N., Xue, Han & Li, Yong, 2026, Reevaluating Sirococcus: synonymizing Gnomoniopsis and elucidating the life cycle of S. daii, pp. e 186049 in IMA Fungus 17 on page e186049, DOI: 10.3897/imafungus.17.186049