Basionym Name:Trypethelium cruentum var. subdecolor Nyl., Lich. Japon.: 93 (1890)
Homotypic synonyms:Melanotheca cruenta f. subdecolor (Nyl.) Zahlbr., Cat. Lich. Univers. 1: 480 (1922)Pyrenula subdecolor (Nyl.) R.C. Harris, Evansia 4(2): 29 (1987)Trypethelium cruentum f. subdecolor (Nyl.) Zahlbr., Cat. Lich. Univers. 1: 480 (1922)