Pleosporales » Amniculicolaceae

Murispora

Murispora Y. Zhang ter, J. Fourn. & K.D. Hyde, Stud. Mycol. 64: 95 (2009).

Index Fungorum number: IF 515472; Facesoffungi number: FoF 08155, 7 morphological species (Species Fungorum 2022), 7 species with molecular data.

Saprobic on host. Sexual morph: Ascomata scattered to gregarious, immersed, lenticular, apex laterally flattened, black, slightly protruding, opening through a small, rounded pore, substrate-stained purple. Peridium composed of 3–4 layers cells of textura angularis thick at the apex with very thick-walled cells, pseudoparenchymatous, nearly absent at the base. Hamathecium of narrowly cellular pseudoparaphyses, broad, embedded in mucilage. Asci 8-spored, bitunicate, fissitunicate, biseriate, cylindro-clavate with a small ocular chamber, with short pedicels. Ascospores curved-fusoid with narrowly rounded ends, golden yellow turning brown when senescent, 7–9 transversally septate, constricted at the septa, with one, rarely two longitudinal septa in all cells except end cells which are often slightly paler, all cells filled with a large refractive guttule, smooth to finely verruculose, surrounded by a wide mucilaginous sheath. Asexual morph: Phoma sp. (adapted from Zhang et al. 2012).

 Type species: Murispora rubicunda (Niessl) Y. Zhang ter, J. Fourn. & K.D. Hyde

Notes: Murispora is characterised by scattered to gregarious ascomata, cylindro-clavate asci with a small ocular chamber and curved-fusoid with narrowly rounded ends, golden yellow turning brown ascospores with 7–9 transverse septa, surrounded by a wide mucilaginous sheath (Zhang et al. 2009). In the phylogenetic study of Zhang et al. (2009), Murispora formed a strongly supported clade with species of Amniculicola and hence was accommodated in Amniculicolaceae. Murispora is morphologically and phylogenetically a well-defined genus in Amniculicolaceae. LSU, SSU, ITS, TEF1 sequences are available for Murispora.

 

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