Heptameria
Heptameria Rehm & Thüm., Inst. Rev. Cient. Litt., Coimbra 27: 252 (1879).
Index Fungorum number: IF 2299; Facesoffungi number: FoF 12230, 3 morphological species (Species Fungorum 2022), no molecular data available.
Saprobic or pathogenic on host. Sexual morph: Unknown. Asexual morph: Conidiomata pycnidial, dark colored, opening irregularly. Conidiomata wall not observed. Conidiophores reduced to conidiogenous cells. Conidiogenous cells phialidic, hyaline to olivaceous brown. Conidia simple, dark brown, aseptate, with thin and indistinctly ornamented outer wall.
Type species: Heptameria elegans Rehm & Thüm.
Notes: Heptameria is characterised by pycnidial, dark colored conidiomata, conidiophores reduced to conidiogenous cells, phialidic, hyaline to olivaceous brown conidiogenous cells and simple, dark brown, aseptate conidia. Lucas and Sutton (1971) examined the holotype of H. elegans and considered it to be a synonym of an earlier proposed species H. obesa (≡ Sphaeria obesa). Heptameria obesa (≡ Sphaeria obesa) is synonymized with Leptosphaeria obesa (Index Fungorum 2022). Heptameria differs from Leptosphaeria in that the latter has cucurbitaria-like pseudothecia and characteristic ascospores (Petrak 1951). Lumbsch and Huhndorf (2010), Kirk et al. (2013) and Wijayawardene et al. (2017, 2020) treated Heptameria in Dothideomycetes genera incertae sedis. Sequence data are needed to confirm whether Heptameria is a valid genus since most species of Heptameria have been transferred to other genera (Index Fungorum 2022). In this study, we illustrate a specimen of H. elegans (UME 30516) and provide a description of Heptameria.
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