Xylochrysis Réblová, Mycologia 106(3): 567 (2014)
Index Fungorum number: IF805253; 1 species with sequence data.
Type species – Xylochrysis lucida Réblová, V. Štěpánek & R.K. Schumach.
Notes – The monotypic genus Xylochrysis was isolated from decaying bark and wood of Rhododendron in Germany. The genus is characterised by ascomata often aggregated in small groups, with astromatic or stromatic base, surrounded by a pigmented layer of cells, cylindrical asci and hyaline, ellipsoidal ascospores (Réblová et al. 2014). Xylochrysis lucida was introduced by Réblová et al. (2014) in a newly established genus Xylochrysis with conidiomata produced in culture. Xylochrysis lucida was not assigned to any other known families when first reported. Zhang et al. (2017a) established a new family Woswasiaceae to accommodate three genera including X. lucida.
Figure – Xylochrysis lucida (Material examined – GERMANY, Near Neuendorf, on decaying wood and bark of a twig of a cultivated shrubby Rhododendron sp., 14 January 2012, R.K. Schumacher R.S. 044, PRM 922621, holotype). a Herbarium material with label. b Appearance of superficial ascomata on host. c Vertical section through ascoma. d, e Vertical section through peridium. f Structure of peridium. g Paraphyses. h-l Unitunicate asci. m-q Ascospores. Scale bars: d, e = 50 μm, f, g, i-l = 20 μm, h, m-q = 5 μm.
Figure – Asexual morph of Xylochrysis lucida (redrawn from Réblová et al. 2014). a Conidiophores bearing conidia. b Conidia. Scale bars: a, b = 10 μm.