Fungalpedia – Note 2075, Libertasomycetaceae
Libertasomycetaceae Crous
Citation when using this data: Hongsanan S et al. 2020 – Fungalpedia,
Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic and pathogenic fungi. Sexual morph: Ascomata immersed in a brown stroma, becoming erumpent, breaking through the host surface, aggregated in clusters, with a central ostiole. Peridium composed of 6–10 layers of brown textura angularis cells. Hamathecium comprising hyphal-like, intermingled among asci, hyaline, smooth, septate, anastomosing, cellular pseudoparaphyses. Asci 8-spored, bitunicate, stipitate, hyaline, smooth, subcylindrical with ocular chamber. Ascospores fasciculate, fusoid-ellipsoidal, brown, muriformly septate, verruculose with obtuse ends, encased in a mucoid sheath. Asexual morph: Conidiomata unilocular, stromatic, separate, globose, immersed, brown, opening via a central ostiole. Peridium composed of 3–6 layers of brown textura angularis cells. Conidiophores reduced to conidiogenous cells. Conidiogenous cells lining the inner cavity, hyaline, smooth, ampulliform to doliiform, with prominent periclinal thickening at the apex, or with tightly aggregated percurrent proliferations at the apex. Conidia solitary, subcylindrical to ellipsoidal, straight to curved, golden brown, 0–1- septate, constricted at median septum, apex obtuse, base truncate, with marginal frill, and longitudinal striations, or ellipsoidal, apex obtuse, base truncate to bluntly rounded, hyaline, granular, aseptate, thin- and smooth-walled (Crous & Groenewald 2017).
Notes: Crous & Groenewald (2017) introduced Libertasomycetaceae to accommodate Libertasomyces and Neoplatysporoides in order Pleosporales. Species of Libertasomycetaceae are saprobic on twigs and leaf litter (Crous et al. 2016a, b, Crous & Groenewald 2017).
Type genus: Libertasomyces Crous & Roets.
References
Entry by
Sinang Hongsanan, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, People’s Republic of China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50002, Thailand
Published online 25 March 2026