Fungalpedia – Note 1157, Chaetomiaceae

 

Chaetomiaceae G. Winter

Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Microascales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Saprobic on mammal dung. Sexual morph: Stromata absent. Ascomata elongate or perithecial, hemisphaerical, embedded. Interascal tissue of undifferentiated hyphae, basal perithecial envelope black, globular, carbonaceous, foot cylindrical, light yellow to brown, translucent, striated, brown apex, the upper part formed from anastomosing setae, lacking ostioles. Peridium pseudoparenchymatous, composed of textura angularis embedded in the substrate and with an aerial “capillitium”. Asci 8-spored, catenulate, globose or clavate, evanescent. Ascospores overlapping, pale yellow to brown, aseptate, hyaline to pale brown, ellipsoidal or fusiform, lacking germ pores, smooth-walled or with striations, dextrinoid or not dextrinoid, turning to reddish brown in Melzer’s reagent (adapted from Benny & Kimbrough 1980, Maharachchikumbura et al. 2016b). Asexual morph: Hyphomycetous, forming arthrospores (Wijayawardene et al. 2017b).

Notes: Chadefaudiellaceae was validated by Benny & Kimbrough (1980) and typified by Chadefaudiella. The family consists of species with immersed ascomata lacking ostioles, with a pseudoparenchymatous peridium and aerial thick-walled ‘capillitium’, enclosing catenulate, evanescent asci with non-dextrinoid ascospores devoid of germ pores (Cannon & Kirk 2007). The species was originally found on gazelle dung at Koudou, Chad (Africa) (Benny & Kimbrough 1980). The classification of Faurelina has been problematic and despite the similarities with Chadefaudiella noted by Locquin-Linard (1975), it has undergone many changes in terms of its higher order placement. The placement of Faurelina was debatable and has been speculated to have affinities with many different groups such as Sordariaceae, Testudinaceae, Pithoascaceae and even in Dothideomycetes (Locquin-Linard 1975, Parguey-Leduc & Locquin-Linard 1976, von Arx 1978). Finally, the genus was placed in Chadefaudiellaceae along with Chadefaudiella (Cannon & Kirk 2007, Tang et al. 2007, Maharachchikumbura et al. 2015).

Type genus: Chadefaudiella Faurel & Schotter, C. r. hebd. Séanc. Acad. Sci., Paris 249 (no. 1): 152 (1959).

 

References

Benny GL, Kimbrough JW. 1980 – A synopsis of the orders and families of Plectomycetes with keys to genera. Mycotaxon 12, 1–91.

Cannon PF, Kirk PM. 2007 – Fungal families of the world. CABI Bioscience, Wallingford 1–456.

Locquin-Linard M. 1975 – Faurelina, nouveau genre d’Ascomycètes (Chadefaudiellaceae). Rev Mycol 39, 125–129.

Parguey-Leduc A, Locquin-Linard M. 1976 – L’ontogénie et la structures des périthèces de Faurelina fimigenes Locquin-Linard. Rev Mycol 40, 161–175.

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

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016b – Families of Sordariomycetes. Fungal Diversity 79, 1–317.

Tang AMC, Jeewon R, Hyde KD. 2007 – Phylogenetic utility of protein (RPB2, β-tubulin) and ribosomal (LSU, SSU) gene sequences in the systematics of Sordariomycetes (Ascomycota, Fungi). Antonie Van Leeuwenhoek 91, 327–349.

von Arx JA, Mukerji KG, Singh N. 1978 – A new coprophilous ascomycete from India. Persoonia 10, 144–146.

Wijayawardene NN, Hyde KD, Tibpromma S, Wanasinghe DN et al. 2017b – Towards incorporating asexual fungi in a natural classification: checklist and notes 2012–2016. Mycosphere 8, 1457–1555.

 

Entry by

Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China

 

Published online 28 February 2020

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