Fungalpedia – Note 2505, Cancellidiales

 

Cancellidiales. K.D. Hyde & Hongsanan.

Citation when using this data: Hyde KD et al. 2021 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

 

Saprobic on wood and twigs in freshwater. Asexual morph: Conidiophores semi-macronematous to macronematous, mononematous, pale brown to yellowish brown, smooth, thick-walled, septate, cylindrical, sometimes developed from assimilative hypha. Conidiogenous cells monoblastic, integrated, terminal, pale brown to yellowish brown. Conidia acrogenous, holoblastic, solitary, dry, olivaceous to greyish green, shiny, flattened, obovate or ellipsoidal, fan-shaped, mostly with truncated head, composed of many parallel, septate columns arranged in lines radiating from conidial base, internally contain chains of subhyaline, small moniliform cells. Sexual morph: Undetermined. 

Notes: This order comprises a single genus. Cancellidium species have unique characters, such as large, flattened, fan-shaped conidia with many parallel columns of cells and internally contain chains of subhyaline, globose to fusiform cells (Cai et al. 2006; Seifert and Gams 2011). Phylogenetic analyses showed that it forms a distinct, well-supported clade (Luo et al. 2019; Hyde et al. 2020a) and the stem age of Cancellidiales is around 137 MYA, which falls in the range of an order (Hyde et al. 2017).

 

Type family: Cancellidiaceae K.D. Hyde & Hongsanan.

 

References

Cai L, Hyde KD, Tsui CKM 2006 – Genera of freshwater fungi. Fungal Divers 18:1–261.

Hyde KD, Maharachchikumbura SS, Hongsanan S, Samarakoon MC, Lucking R, Pem D, Harishchandra D, Jeewon R, Zhao RL, Xu JC, Liu JK 2017 – The ranking of fungi: a tribute to David L. Hawksworth on his 70th birthday. Fungal Divers 84:1–23.

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

Luo ZL, Hyde KD, Liu JK, Maharachchikumbura SSN, Jeewon R, Bao DF, Bhat DJ, Lin CG, Li WL, Yang J, Liu NG, Lu YZ, Jayawardena RS, Li JF, Su HY 2019 – Freshwater Sordariomycetes. Fungal Divers 99:451–660.

Seifert KA, Gams W 2011 – The genera of Hyphomycetes-2011 update. Persoonia 27:119–129.

 

Entry by

Kevin David Hyde, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Research Centre of Microbial Diversity and Sustainable Ultilization, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, PR China

 

Published online 28 May 2026

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