Pseudomurilentithecium camporesii Mapook & K.D. Hyde, in Hyde et al., Fungal Diversity 100: 69 (2020)
Index Fungorum number: IF556903; Facesofungi number: FoF 06792
Etymology: Named in honour of the collector, Erio Camporesi.
Holotype: MFLU 20–0047
Saprobic on dead aerial stem of Vicia sp. Sexual morph: Ascomata (90–)130–145 μm high, 140–160 μm diam. (x̄ = 123 × 154 μm, n = 5), immersed, solitary or scattered, coriaceous, subglobose to globose, dark brown to black, ostiolar neck protruding. Peridium 14–20 μm wide, 2–3 layers, comprising dark brown cells of textura angularis. Hamathecium comprising 2.5–5(–7) μm wide, cylindrical, septate, branching pseudoparaphyses. Asci 90–115 × 16–22 μm (x̄ = 104 × 19 μm, n = 10), 8-spored, bitunicate, cylindricclavate, straight or slightly curved, apically rounded, pedicellate. Ascospores (20–)27–32 × 8–12 μm ( ̄x = 28.5 × 10 μm, n = 40), overlapping, 1–2 seriate, initially hyaline to pale yellow, 1-septate when immature, becoming golden-brown to brown at maturity, ellipsoid to broadly fusiform, muriform, 3–7-transversely septate, with 1–2 longitudinal septa, slightly constricted at the central septum, straight or slightly curved, surrounded by hyaline gelatinous sheath clearly observed when mounted in Indian ink. Asexual morph: Undetermined.
Material examined: ITALY, Province of Forlì-Cesena [FC], Monte Coronaro-Verghereto, on dead aerial stem of Vicia sp. (Fabaceae), 26 July 2014, E. Camporesi, IT 2018 (MFLU 20–0047, holotype), ex-type living culture, MFLUCC 14–1118.
GenBank Numbers: ITS: MN638861; LSU: MN638846; SSU: MN638850; TEF1-α: MN648730.
Note: In a BLASTn search of NCBI GenBank, the closest matches of the ITS sequence of Pseudomurilentithecium camporesii (MFLUCC 14–1118, ex-holotype) with 90.38% similarity, was to Keissleriella cladophila (strain CBS 104.55, MH857391). The closest matches of the LSU sequence with 94.57% similarity, was to Parathyridaria ramulicola Jaklitsch, Fourn. & Voglmayr (strain MF4, KX650564), 94.65% similarity, was to Bimuria novae-zelandiae D. Hawksw., Chea & Sheridan (strain CBS 107.79, NG_058623), and 94.45% similarity, was to Keissleriella cladophila (strain CBS 104.55, GU205221). The closest matches with the SSU sequences with 90.98% similarity, was to Darksidea alpha D.G. Knapp et al. (strain CBS 135628, KP184054). The closest matches of the TEF1-α sequences with 91.35% similarity, was with Misturatosphaeria sp. (strain MFLUCC 10–0126, KR075170), while the closest matches of the RPB2 sequences with 78.79% similarity, was to Murilentithecium clematidis Wanas. et al. (strain MFLUCC 14–0562, KM454447). In the phylogenetic analyses P. camporesii forms a basal clade to Poaceascoma.