Fungalpedia – Note 762, Annulatascaceae

 

Annulatascaceae S.W. Wong, K.D. Hyde & E.B.G. Jones 

Citation when using this data: Karimi O et al. 2025 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Annulatascales, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi 

Wong et al. (1998) introduced Annulatascaceae with Annulatascus as the type genus. Subsequently, Annulatascales was established by Maharachchikumbura et al. (2015) through combined phylogenetic analyses using LSU, SSU, tef1-α, and rpb2 sequence data to accommodate species within Annulatascaceae. Currently, the family comprises 12 genera, including Annulatascus, Annulusmagnus, Aqualignicola, Ascitendus, Ayria, Cataractispora, Chaetorostrum, Fusoidigranularius, Longicollum, Longivarius, Submersisphaeria, and Vertexicola (Hyde 1996, Wong et al. 1998, Hyde et al. 1999, Ranghoo et al. 2001, Campbell & Shearer 2004, Fryar & Hyde 2004, Zelski et al. 2011, Maharachchikumbura et al. 2015, Dong et al. 2021). Members of Annulatascaceae were reported as saprobes on woody substrates in freshwater and terrestrial habitats (Maharachchikumbura et al. 2015). The sexual morph of Annulatascaceae is characterized by unilocular, rarely clypeate ascomata, with black or hyaline necks, coriaceous or membranous peridium, and tapering paraphyses. Asci are 8-spored, unitunicate, pedicellate, and usually feature a massive, J-, refractive apical ring. Ascospores are uniseriate, hyaline or sometimes brown, with or without septa. The asexual morph of Chaetorostrum is reported as taeniolella-like (Maharachchikumbura et al. 2015). 

Type genus: Annulatascus K.D. Hyde, Aust. Syst. Bot. 5(1): 118 (1992).

            

References

Campbell J, Shearer CA. 2004 – Annulusmagnus and Ascitendus, two new genera in the Annulatascaceae. Mycologia. 96, 822–833. 

Dong W, Hyde KD, Jeewon R, Doilom M, et al. 2021 – Towards a natural classification of Annulatascaceae-like taxa II: introducing five new genera and eighteen new species from freshwater. Mycosphere 12, 1–88.

Fryar SC, Hyde KD. 2004 – New species and genera of ascomycetes from fresh and brackish water in Brunei: Ayria appendiculata and Sungaiicola bactrodesmiella gen. et spp. nov., Fluviatispora boothii, Torrentispora crassiparietis and T. fusiformis spp. nov. Cryptogamie Mycologie 25, 245–260.

Hyde KD, Wong SW Jones EBG. 1999 – Cataractispora gen. with three new freshwater lignicolous species. Mycological Research. 103, 1019–1031.

Hyde KD. 1996 – Fungi from palms. XXVIII. Two new species of Pemphidium from Australia and Indonesia. Sydowia, 48, 122–130.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EH et al. 2015 – Towards a natural classification and backbone tree for Sordariomycetes. Fungal Diversity 72, 199–301.

Ranghoo VM, Tsui CKM, Hyde KD. 2001 – Brunneosporella aquatica gen. et sp. nov., Aqualignicola hyalina gen. et sp. nov., Jobellisia viridifusca sp. nov. and Porosphaerellopsis bipolaris sp. nov. (ascomycetes) from submerged wood in freshwater habitats. Mycological Research 105, 625–633.

Wong SW, Hyde KD, Jones EBG. 1998 – Annulatascaceae, a new ascomycete family from the tropics. Systema Ascomycetum 16, 17–25.

Zelski, SE, Raja HA, Miller A, Shearer CA. 2011 – Chaetorostrum quincemilensis, gen. et sp. nov., a new freshwater ascomycete and its Taeniolella-like anamorph from Peru. Mycosphere 2, 593–600.

 

Entry by

Omid Karimi, State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine & School of Pharmaceutical Sciences, Guizhou Medical University, Guian New District, Guizhou 550004, China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand

 

Published online 28 July 2025

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