Carbacanthographis marcescens (Fée) Staiger & Kalb

Jiang, Shu-Hao, Hao, Cheng-Yue, Zhao, Xin & Jia, Ze-Feng, 2024, New species and record in the genus Carbacanthographis (lichenized Ascomycota, Graphidaceae) from China, Phytotaxa 670 (4), pp. 285-292 : 290-291

Carbacanthographis marcescens (Fée) Staiger & Kalb , in Staiger, Bibl. Lichenol. 85: 109 (2002)

Type:—AMERICA: meridionally, unknown locality, s. col. (G– lectotype; L– isolectotype).

Brief description: —Thallus ecorticate, greenish. Ascomata lirellate, erumpent to prominent, sparsely branched, with lateral thalline margin, 1–5 mm long, 0.2–0.3 mm wide. Labia well developed, covered by a thick, white pruina. Excipulum laterally carbonized. Hymenium clear. Paraphyses simple. Periphysoids distinctly warty at the tips. Ascospores 8-per ascus, hyaline, 3–4 × 0–1-septate, 12.5–20 × 5–7.5 μm, I−.

Chemistry and spot tests: —Thallus K+ yellow to red, P+ orange-red, UV−. TLC: salazinc, protocetraric and norstictic acids.

Notes: —Earlier, C. marcescens was reported from Hong Kong and Guangxi Province ( Aptroot & Sipman 2001; Sipman 2010; Jia et al. 2018; Jia & Lücking 2017). Now, the known distribution of the species within China is expanded to Fujian Province.

Material examined: — China. Fujian Province: Zhangzhou City, Nanjing County, Hexi Village, Letu Subtropical Rainforest Nature Reserve. 270 m elev., 117°12′56″E, 24°54′20″N, on bark, 27 November 2023, J.C. Li FJ231892, FJ231893 ( LCUF).