Pleosporales » Aigialaceae

Neoastrosphaeriella

Neoastrosphaeriella Jian K. Liu, E.B.G. Jones & K.D. Hyde, in Liu et al., Fungal Diversity 51(1): 148 (2011).

 Index Fungorum number: IF 563462; Facesoffungi number: FoF 08150, 5 morphological species (Species Fungorum 2022), 5 species with molecular data.

Saprobic on host. Sexual morph: Ascomata black, scattered, immersed to semi-immersed, erumpent, usually beneath host tissue, opening with a slit-like ostiole. Peridium carbonaceous, uneven in thickness, composed of dark brown thick-walled cells. Pseudoparaphyses trabeculate, hyaline, anastomosing, embedded in a gelatinous matrix. Asci 8–spored, bitunicate, fissitunicate, obclavate to cylindrical, pedicellate, with a small ocular chamber. Ascospores fusiform, hyaline when young, and becoming brown to dark brown, spore wall verrucose when mature, 1–septate, constricted at the septum, surrounded by a mucilaginous sheath. Asexual morph: Unknown (adapted from Liu et al. 2011).

 

Type species: Neoastrosphaeriella krabiensis Jian K. Liu, E.B.G. Jones & K.D. Hyde

 

Notes: Neoastrosphaeriella is characterised by having semi-immersed to immersed ascomata with slit-like ostioles, obclavate asci and brown, verrucose ascospores. In the phylogenetic analysis of Liu et al. (2011), Neoastrosphaeriella forms a sister group with other four genera in the family Aigialaceae. Neoastrosphaeriella differs from Fissuroma in having smaller obclavate asci and brown verrucose ascospores, while Fissuroma has cylindro-clavate asci and hyaline ascospores. Neoastrosphaeriella is a distinct and well-supported genus in Aigialaceae. Molecular markers available for Neoastrosphaeriella are ITS, LSU, SSU, RPB2 and TEF-1.

 

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