Scorias
Scorias Fr., Syst. mycol. (Lundae) 3(2): 269, 290 (1832).
Index Fungorum number: IF 4966; Facesoffungi number: FoF 01060, 10 morphological species (Species Fungorum 2022), 5 species with molecular data.
Saprobic on sugary exudates from insects growing on host. Thallus comprising black dense, septate mycelium with ascomata covering the surface of host. Sexual morph: Ascomata dark brown to blackish, shiny, subglobose to broadly ellipsoidal, with a rounded apex, central ostiole present at maturity, with short stalk. Peridium composed of cells of textura angularis. Asci 8-spored, bitunicate, oblong to saccate. Ascospores hyaline, fusiform, with 3–4 trans-septa, upper cells slightly wider than lower cells. Asexual morph: Pycnidia long-stalked, flask-shaped, tapering to the apex, pycnidium wall showing helical twisting, synnemata-like, dark brown to black at the base, brown to pale brown towards the tapering apex. Conidia ellipsoidal, hyaline. (adapted from Chomnunti et al. 2011).
Type species: Scorias spongiosa (Schwein.) Fr.
Notes: Scorias is a sooty mould characterised by subglobose to broadly ellipsoidal, dark brown to blackish, shiny ascomata, with a short stalk, oblong to saccate asci, and fusiform, 3–4 trans-septate, hyaline ascospores (Chomnunti et al. 2011). Scorias resembles Leptoxyphium in the asexual morph characters but differs in having short and wider pycnidia while Leptoxyphium is characterised by long pycnidia with narrow base. Chomnunti et al. (2011) observed the lectotype specimen from UPS, the syntype specimen K(M) 171138 and other authentic specimens K(M) 171139, K(M) 171140, K(M) 171141, K(M) 171142 and also designated an epitype collected on living leaf of Entada sp. (Fabaceae) in Thailand. Scorias is morphologically and phylogenetically a distinct genus in Capnodiaceae. Molecular markers available for Scorias are LSU, SSU, ITS, RPB2 and TEF-1.
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