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Australian Journal of
Freshwater fungi from southern Australia: Minivolcanus unicellularis gen. et. sp. nov. and Achrochaeta rivulata sp. nov.
Sally C. Fryar, Martina Réblová & David E.A. Catcheside
Author details ⏷
Sally C. Fryar[1*], Martina Réblová & David E.A. Catcheside
 College of Science and Engineering, Flinders University, G.P.O. Box 2100, Adelaide SA 5001, Australia
 The Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic
While conducting a survey of freshwater fungi in the temperate region of southern Australia, we came across two previously undiscovered anamorphic Ascomycota, a phoma-like coelomycete and a dictyochaeta-like hyphomycete. The coelomycetous fungus was classified in the family Morosphaeriaceae (Pleosporales) as a new genus, primarily supported by molecular data. We hereby introduce Minivolcanus unicellularis, the new genus and species, accompanied by both morphological and molecular evidence. Additionally, the dictyochaeta-like hyphomycete was placed in the genus Achrochaeta in the Chaetosphaeriaceae (Chaetosphaeriales) based on a combination of morphological characteristics and phylogenetic analyses utilising ITS, 28S, and TEF1 sequences. This newly identified species is proposed as Achrochaeta rivulata, the second species described within this genus. These findings expand our knowledge of fungal diversity in the region.
Cite this paper as: Fryar SC, Réblová M & Catcheside DEA (2023). Freshwater fungi from southern Australia: Minivolcanus unicellularis gen. et. sp. nov. and Achrochaeta rivulata sp. nov.. Australian Journal of Taxonomy 40: 1–19. doi: https://doi.org/10.54102/ajt.gqppy
This paper was published on: 13/11/2023