Pseudoarthrographis
Pseudoarthrographis Crous & Thangavel, in Crous et al., Persoonia 40: 341 (2018).
Index Fungorum number: IF 825401; Facesoffungi number: FoF 12433, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on host. Sexual morph: Unknown. Asexual morph: Mycelium consisting of smooth, pale brown, septate, branched, hyphae. Conidiophores solitary, arising directly from superficial hyphae, subcylindrical, pale brown, smooth, erect, 0–1-septate, or reduced to conidiogenous loci directly on hyphae. Conidiogenous cells solitary, loci on hyphae or terminal on conidiophores, integrated. Arthroconidia occurring in chains, cylindrical with truncate ends, smooth, pale olivaceous in mass, 0–1-septate, in branched or unbranched chains, hila inconspicuous, truncate. Chlamydospores developing in culture, occurring in chains, globose, medium brown, smooth (adapted from Crous et al. 2018).
Type species: Pseudoarthrographis phlogis Crous & Thangavel
Notes: Pseudoarthrographis is characterised by pale brown, septate mycelium, subcylindrical, pale brown, smooth, erect, 0–1-septate conidiophores, cylindrical arthroconidia with truncate ends and globose, medium brown, and smooth chlamydospores formed in cultures. Pseudoarthrographis morphologically resembles Arthrographis but is phylogenetically distinct. Pseudoarthrographis is also similar to Arthropsis based on the dark arthroconidia, joined by adjacent connectives and formed from undifferentiated conidiogenous hyphae (Sigler et al. 1982). The systematic position of Pseudoarthrographis is uncertain and is currently in Dothideomycetes genera incertae sedis. More taxa with DNA sequence data are needed to confirm the systematic position of Pseudoarthrographis.
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