Myrmecridiaceae Crous, Persoonia 34: 219 (2015)

Index Fungorum number: IF812461; Facesoffungi number: FoF06703, 16 species.


Saprobic on decaying wood submerged in freshwater, leaf litter, on stem or leaves of herbaceous plants, occurring on soil and in house dust (Crous et al. 2015, 2016, 2018, Peintner et al. 2016, Réblová et al. 2016, Tibpromma et al. 2017).


Sexual morph: Ascomata immersed, solitary or aggregated, with subglobose to conical venter and ostiolate papilla as well as dark brown clypeus, glabrous. Ostiole periphysate. Peridium leathery, two-layered with hyaline to pale brown outer layer and subhyaline inner layer consisting of cells of textura angularis to textura prismatica. Paraphyses cylindrical, septate. Asci 8-spored, unitunicate, cylindrical, with a slender long pedicel, apex rounded. Ascospores uniseriate or overlapping uniseriate, hyaline, ellipsoidal, 3- septate, slightly verrucose, with granular content (Réblová et al. 2016). Asexual morph: In vitro, Mycelium submerged, hyaline, thin-walled. Conidiophores erect from creeping hyphae, unbranched, straight or flexuous, brown at base and paler towards the apex, subcylindrical, smooth, septate. Conidiogenous cells differentiating from the apical region of conidiophore, integrated, polyblastic, cylindrical, subhyaline to brown, with conidium-bearing denticles along the conidiogenous axis. Conidia hyaline to pale brown, ellipsoid to obovoid to fusoid, solitary, smooth or verrucose, aseptate or septate, some species present a wing-like sheath (adapted from Crous et al. 2015, 2016, 2018, Peintner et al. 2016, Tibpromma et al. 2017).



Crous PW, Wingfield MJ, Guarro J, Hernández-Restrepo M et al. (2015) Fungal planet description sheets: 320-370. Persoonia 34, 167–266

Crous PW, Wingfield MJ, Richardson DM, Le Roux JJ et al. (2016) Fungal Planet description sheets: 400–468. Persoonia 36, 316–458

Crous PW, Wingfield MJ, Burgess TI, Hardy GE et al. (2017) Fungal Planet description sheets: 558–624. Persoonia 38, 240–384

Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ et al. (2020) Refined families of Sordariomycetes. Mycosphere 11, 305–1059 (1)

Peintner U, Knapp M, Fleischer V, Walch G et al. (2016) Myrmecridium hiemale sp. nov. from snow-covered alpine soil is the first eurypsychrophile in this genus of anamorphic fungi. International Journal of Systematic and Evolutionary Microbiology 66, 2592–2598

Réblová M, Fournier J, Štěpánek V. (2016) Two new lineages of aquatic ascomycetes: Atractospora gen. nov. and Rubellisphaeria gen. et sp. nov., and a sexual morph of Myrmecridium montsegurinum. sp. nov. Mycological Progress 15, 1–39

Tibpromma S, Hyde KD, Jeewon R, Maharachchikumbura SSN et al. (2017) Fungal diversity notes 491–602: taxonomic and phylogenetic contributions to fungal taxa. Fungal Diversity 83, 1–261


About Freshwater Fungi

The webpage Freshwater Fungi provides an up-to-date classification and account of all genera of freshwater fungi.


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