Fungalpedia – Note 3265, Biannulariaceae

 

Biannulariaceae Jülich, Biblthca Mycol. 85: 356 (1982) [1981].

Citation when using this data: He MQ et al. 2024 – Fungalpedia.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Tricholomatineae, Agaricales, Agaricomycetidae, Agaricomycetes, Agaricomycotina, Basidiomycota, Dikarya, Fungi.

Vizzini et al. (2020a) proposed a new classification of the taxa formerly ascribed to Biannulariaceae (≡ Catathelasmataceae), viz. Catathelasma (type), Anupama, Callistosporium, Guyanagarika, Macrocybe, Pleurocollybia, and Pseudolaccaria (Sánchez-García et al. 2016). Phylogenetic inference of Tricholomatineae based on the analysis of a combined multigene dataset supported the monophyletic origin of the aforementioned genera with the exception of Catathelasma, which is related with Bonomyces and Cleistocybe (Vizzini et al. 2020a). Biannulariaceae was therefore emended to include the clade formed by Bonomyces, Catathelasma, and Cleistocybe. Callistosporiaceae was proposed to name the clade containing Callistosporium (= Pleurocollybia) and related genera (Vizzini et al. 2020a). Species of Callistosporium with distant lamellae, long hygrophoroid basidia and large amygdaliform basidiospores were accommodated in Xerophorus (Vizzini et al. 2020a).

Type genus: Biannularia Beck 1922.

Other accepted species: Species Fungorum – search Biannulariaceae.

 

References

Sánchez-García M, Henkel TW, Aime MC, Smith ME, Matheny PB 2016 – Guyanagarika, a new ectomycorrhizal genus of Agaricales from the Neotropics. Fungal Biology 120(12):1540–1553.

Vizzini A, Consiglio G, Marchetti M, Alvarado P 2020a – Insights into the Tricholomatineae (Agaricales, Agaricomycetes): a new arrangement of Biannulariaceae and Callistosporium, Callistosporiaceae fam. nov., Xerophorus stat. nov., and Pleurocollybia incorporated into Callistosporium. Fungal Diversity 101(1):211–259.

 

Entry by

Mao-Qiang He, State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China.

 

Published online 25 September 2026.

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