Neomassariosphaeria Y. Zhang ter, J. Fourn. & K.D. Hyde
Index Fungorum number: IF 515473
Saprobic on submerged culm of Phragmites. Sexual morph: Ascomata scattered or in small groups, deeply immersed, lenticular or depressed ellipsoidal, with ostiolate papilla, stain substrate purple, visible as black, slit-like spot on the surface of substrate. Peridium comprising several layers of rounded to angular, brown to dark brown, thick-walled cells. Pseudoparaphyses numerous, trabeculate, filiform, hyaline, embedded in a matrix. Asci 8-spored, bitunicate, fissitunicate, cylindro-clavate to broadly clavate, with an ocular chamber and short pedicel. Ascospores bi- to tri-seriate, narrowly to broadly fusoid, straight or curved, multi-septate, reddish brown, minutely verruculose, usually with a thin gelatinous sheath. Asexual morph: Undetermined.
Notes: Neomassariosphaeria was established in Amniculicolaceae to accommodate Massariosphaeria typhicola (P. Karst.) Leuchtm (Zhang et al. 2009c). Later, it was transferred to Lindgomycetaceae based on phylogenetic analysis (Ariyawansa et al. 2015). However, we found that CBS 123126 is a problematic strain, which possesses two different LSU sequences and clusters in different families, i.e. FJ795504 (Zhang et al. 2009c) in Lindgomycetaceae and GU301844 (Schoch et al. 2009) in Amniculicolaceae. We substantiate GU301844 is the real sequence of Neomassariosphaeria typhicola (P. Karst.) Y. Zhang ter et al., while FJ795504, listed in Zhang et al. (2009c), is invalid (pers. comm. Zhang Y.). Ariyawansa et al. (2015) only included the invalid sequence FJ795504 in their phylognetic tree, which resulted in the classification of Neomassariosphaeria in Lindgomycetaceae.
Neomassariosphaeria often stains the woody substrate purple, and has reddish brown, multi-septate Ascospores with an irregular, hyaline, gelatinous sheath, which morphologically fit well with the familial concept of Amniculicolaceae (Zhang et al. 2009c; Hyde et al. 2013). Based on morphology and our phylogenetic tree, we follow Zhang et al. (2009c), to retain Neomassariosphaeria in Amniculicolaceae. Accession number FJ795504 bearing CBS123126 is treated as an invalid sequence.
Neomassariosphaeria typhicola (IFRD 2018) was considered as a synonym of Massariosphaeria typhicola (Zhang et al. 2009c). Although they are similar in the ascomata that staining the substrate purple, re-examination of IFRD 2018 shows that it is different from M. typhicola in having lenticular ascomata with an elongate papilla on the substrate, dark brown to black, reddish brown ascospores (Leuchtmann 1984). Phylogeny also placed them in different families, i.e. N. typhicola in Amniculicolaceae, M. typhicola in Lindgomycetaceae (Zhang et al. 2009c). We Dong et al. 2020, treat Neomassariosphaeria typhicola and Massa- riosphaeria typhicola as different species.
Type species: Neomassariosphaeria typhicola (P. Karst.) Y. Zhang ter, J. Fourn. & K.D. Hyde, in Zhang, Schoch, Fournier, Crous, Gruyter, Woudenberg, Hirayama, Tanaka, Pointing, Spatafora & Hyde, Stud. Mycol. 64: 96 (2009)
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