Stigmatodiscus Voglmayr & Jaklitsch, in Voglmayr, Gardiennet & Jaklitsch, Fungal Diversity 80: 278 (2016)
Index Fungorum number: IF815327;
Voglmayr et al. (2016) introduced the genus with the type Stigmatodiscus enigmaticus. Species of this genus are widely distributed in Central and Southern Europe (Voglmayr et al. 2016). These species are mainly saprobes that found on dead corticated twigs still attached to the trees (Voglmayr et al. 2016). There are six species accepted in the genus (Voglmayr & Amengual 2018).
Phylogram generated from the maximum likelihood analysis based on combined ITS, SSU, TEF1-α, RPB2 and β-TUB sequence data representing genus Stigmatodiscus. Seventeen strains are included in the combined analyses, comprising 6745 characters (ITS: 1625 characters for ITS, 1727 characters for SSU, 1163 characters for TEF1-α, 1384 characters for RPB2, 846 characters for β-TUB) after alignment. Saccardoella rhizophorae (JK 5456A), Megalotremis verrucosa and Palawania thailandense (MFLUCC 14-1121) are used as the outgroup taxa. For all the gene regions, GTR+G was applied as the evolutionary model. The best RaxML tree with a final likelihood values of -19048.074675 is presented. The matrix had 1070 distinct alignment patterns, with 47.59 %undetermined characters or gaps. Estimated base frequencies were as follows: A = 0.233721, C = 0.264938, G = 0.286269, T = 0.215072; substitution rates AC = 1.432191, AG = 2.914708, AT = 1.405249, CG = 1.332164, CT = 7.594185, GT = 1.000000; gamma distribution shape parameter α = 0.579606. Bootstrap values for ML equal to or greater than 50% (first set) and MP equal to or greater than 50% (second set) are given above the nodes. Ex-type strains are in black and new strain is indicated in yellow.