Paraxylaria Wanas., E.B.G. Jones, Gafforov & K.D. Hyde, gen. nov., Index Fungorum number: IF554226

Etymology: After its morphological similarities to Xylaria.

Saprobic on Rosaceae spp. Sexual morph: Ascomata immersed, with the ostiolum, often including an upper part of the ascoma, erumpent above the host surface, solitary or aggregated in small numbers, conical with rounded base or more or less globose with a prominent, conical, more or less acute, shiny black, papilla, circular in transverse section, black; often surrounded by white amorphous tissue turning black by ejected ascospores. Peridium thickened and hard in apical regions, blackish brown, consisting of small pseudoparenchymatous cells. Hamathecium comprising numerous, filamentous, septate, paraphyses. Asci 8-spored, unitunicate, cylindrical, pedicellate, containing a flat, V-shaped to sinuous, J+ apical ring. Ascospores uniseriate, ellipsoid, pale brown, mostly symmetrical, aseptate, initially hyaline to yellowish- brown, becoming blackish-brown at maturity, with rounded ends, guttulate. Asexual morph: Undetermined.

Type species: Paraxylaria rosacearum Wanas., Gafforov, E.B.G. Jones & K.D. Hyde

Notes: Paraxylaria is morphologically more similar to Xylaria in its asci and ascospores. But these two genera are
phylogenetically apart in multi-gene phylogenetic analyses (data not shown). The phylogenetic analyses reveal a close phylogenetic affinity of Paraxylaria to other members of the Coniocessiaceae with reliable support and hence we refer it to Coniocessiaceae.

Species

    • Paraxylaria rosacearum