Mycosphaerellales » Mycosphaerellales genera incertae sedis

Brunneomycosphaerella

Brunneomycosphaerella Dissan., Jian K. Liu & K.D. Hyde, in Liu et al., Fungal Diversity: 10.1007/s13225-015-0324-y, [69] (2015).

 Index Fungorum number: IF 551058; Facesoffungi number: FoF 00565, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Saprobic on dead branches. Sexual morph: Ascostromata solitary, scattered or gregarious, immersed to erumpent, dark brown to black, uni- to bi-loculate, globose to sub-globose. Peridium comprising brown to black-walled cells of textura angularis. Hamathecium comprising septate, hyaline pseudoparaphyses. Asci 8-spored, bitunicate, fissitunicate, elongate, cylindrical to slightly clavate at the base, pedicellate, rounded at apex with a canal-like structure, with an ocular chamber. Ascospores multi-seriate, dark yellow to brown, 1- septate, deeply constricted at the septum, ellipsoidal with broadly rounded ends, with small and large guttules, smooth-walled, lacking a sheath. Asexual morph: Unknown (adapted from Liu et al. 2015).

 Type species: Brunneomycosphaerella laburni Dissan., J.K. Liu & K.D. Hyde

Notes: Brunneomycosphaerella is characterised by solitary, scattered or gregarious ascostromata, fissitunicate, elongate, cylindrical to slightly clavate asci and dark yellow to brown, uniseptate ascospores. In the phylogenetic analysis of Liu et al. (2015) based on SSU and LSU sequence data, B. laburni clustered in an unresolved lineage. Liu et al. (2015) referred Brunneomycosphaerella to Capnodiales, family incertae sedis. The generic placement of Brunneomycosphaerella is uncertain and is currently in Mycosphaerellales genera incertae sedis. More collections with DNA sequence data are needed to confirm the generic placement of Brunneomycosphaerella. Molecular markers available for Brunneomycosphaerella are LSU and SSU.

 

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