Ascomycota, genera » Ascomycota, incertae sedis


Pseudobasidiospora Dyko & B. Sutton, Nova Hedwigia 29(1-2): 168 (1978) [1977]

Facesoffungi number: FoF 07532

Ascomycota, genera incertae sedis


Foliicolous. Sexual morph: undetermined. Asexual morph: Conidiomata pycnidial, amphigenous, solitary to gregarious, subepidermal, deeply immersed, with only the rostrate neck emerging well above the leaf surface, flask-shaped or rounded, globose to subglobose, unilocular, glabrous, thick-walled, ostiolate. Ostiole single, centrally located, with a conical to subcylindrical neck. Conidiomatal wall composed of textura globulosa to textura angularis, with large, thick-walled and dark brown to hyaline cells. Conidiophores reduced to conidiogenous cells. Conidiogenous cells hyaline, holoblastic, ampulliform to lageniform with long narrow neck, discrete, smooth-walled. Conidia hyaline, naviculate, unicellular, smooth-walled, guttulate, bearing a polar, funnel-shape or irregular mucoid appendage.


Type species: Pseudobasidiospora caroliniana Dyko & B. Sutton, Nova Hedwigia 29(1-2): 169 (1978) [1977]


Notes: The monotypic genus Pseudobasidiospora is characterized by pycnidioid, mostly immersed conidiomata with only the rostrate neck emerging above the substrate. The conidiogenous cells usually have a doliiform base. Conidia are naviculate, bearing a mucoid appendage at each end, and formed eccentrically on the tip of filiform conidiogenous cells (Dyko 1979, Campbell et al. 1979, Nag Raj 1993). No sexual morph has been link to this genus and no molecular data is available.


Distribution: Canada, USA (Nag Raj 1993).





Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.


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