Melaspileopsis
Melaspileopsis (Müll. Arg.) Ertz & Diederich, Fungal Diversity 71: 161 (2015).
Index Fungorum number: IF 811387; Facesoffungi number: FoF 07621, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on host. Sexual morph: Ascomata black, simple to occasionally branched lirelliform, sessile comprising a slit-like or narrowly exposed disc; a well-developed, brownish black, K– (brownish pigment disappears). Exciple hyaline, widely open below the hymenium; a hyaline hymenium, I– and K/I– or K/I+ blue then quickly orange. Paraphyses simple. Periphyses developing from the inner excipular layer. Asci clavate, thick-walled (upper part), with a distinct ocular chamber, I–, K/I–. Ascospores 1-septate, hyaline becoming brown on maturity. Asexual morph: Unknown (Adapted from Ertz and Diederich 2015).
Type species: Melaspileopsis diplasiospora (Nyl.) Ertz & Diederich.
Notes: Melaspileopsis was introduced by Ertz and Diederich (2015) with M. diplasiospora as type species. Melaspileopsis is characterised by black, simple to occasionally branched ascomata, hyaline exciple, clavate, thick-walled asci and 1-septate, hyaline ascospores. Etayo (1998) provided a short description of M. diplasiospora. Melaspileopsis was previously in Melaspileaceae, order Eremithallales (Wijayawardene et al. 2018). In the phylogenetic analysis of Dai et al. (2018) based on LSU and SSU sequence data, Melaspileopsis formed a lineage close to Stictographa and was therefore placed in Stictographaceae. Hongsanan et al. (2020b) agreed with Dai et al. (2018) and retained Melaspileopsis in Stictographaceae. Melaspileopsis is morphologically and phylogenetically a distinct genus in Stictographaceae.
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