Dothideomycetes » Dothideomycetes, genera incertae sedis

Dictyostomiopelta

Dictyostomiopelta Viégas [as 'Dyctiostomiopelta'], Bragantia 4(1-6): 53 (1944).

Index Fungorum number: IF 1536; Facesoffungi number: FoF 05167, 1 morphological species (Species Fungorum 2022), no molecular data available.

Hyphae septate, branched, hard to detect. Sexual morph: Ascomata punctiform, flattened, circular, with more or less sharp margin. Asci 8-spored, globose to clavate, thickened at the apex, with short pedicel. Ascospores oblong, muriform, constricted at septa, hyaline, smooth. Asexual morph: Unknown (adapted from Viégas 1944).

 Type species: Dictyostomiopelta manihoticola Viégas

Notes: Dictyostomiopelta is characterised by punctiform, flattened, circular ascomata, globose to clavate asci and oblong, muriform, hyaline ascospores. Viégas (1944) suggested the placement of Dictyostomiopelta in Hemisphaeriaceae (Microthyriales). Zeng et al. (2019) could not locate the type specimen of D. manihoticola and excluded Dictyostomiopelta from Micropeltidaceae based on its muriform ascospores. In the present study Dictyostomiopelta is accepted in Dothideomycetes genera incertae sedis. Fresh collections with DNA sequence data are needed to clarify the taxonomic placement of Dictyostomiopelta.

 

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