Dothideomycetes » Dothideomycetes, genera incertae sedis

Hyalotheles

Hyalotheles Speg., Revta Mus. La Plata 15(2): 11 (1908).

Index Fungorum number: IF 2396; Facesoffungi number: FoF 12242, 1 morphological species (Species Fungorum 2022), no molecular data available.

Forming black spots on the upper surface of leaves. Sexual morph: Individual ascomata scattered, superficial, globose, black. Paraphyses not seen. Asci 8–spored, bitunicate, oblong to obovoid, without a pedicel. Ascospores irregularly arranged in 2–3 rows, globose, hyaline, 1-celled, minutely guttulate. Asexual morph: unknown (adapted from Li et al. 2011).

 Type species: Hyalotheles dimerosperma Speg.

Notes: Hyalotheles is characterised by superficial, globose, black ascomata, oblong to obovoid asci and globose, hyaline, 1-celled, minutely guttulate ascospores. Arx and Müller (1975) placed Hyalotheles in Myriangiaceae. Barr (1979) transferred Hyalotheles to Saccardinulaceae. Lumbsch and Huhndorf (2010) treated Hyalotheles in Elsinoaceae. Li et al. (2011) examined the holotype of H. dimerosperma (LPS 408) and transferred Hyalotheles to Dothideomycetes genera incertae sedis. Fresh collections with DNA sequence data are needed to confirm the taxonomic placement of Hyalotheles.

 

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