Fungalpedia – Note 2143, Thyridaria

 

Thyridaria. Sacc.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Thyridariaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

 

Notes – The placement of Thyridaria has been uncertain and it was assigned to Didymosphaeriaceae, Melanommataceae, Platystomaceae, Pleosporaceae and Sphaeriaceae at various times (Wehmeyer 1941, 1975, Munk 1957, Luttrell 1973, Müller & Arx 1973, Dennis 1978, Barr 1979a, b, 2003). Barr (2003) summarized the various descriptions of Thyridaria and suggested that the genus can be characterized in having an ample subiculum surrounding ascomata, which formed under the periderm or in woody plant substrates, with ascospores having both thickened and darkened septa and walls. Jaklitsch & Voglmayr (2016) examined several thyridaria-like genera, and applied a multi-gene analysis to clarify intergeneric taxonomic affinities of Thyridaria in the Pleosporales.

 

Type species: Thyridaria broussonetiae (Sacc.) Traverso, Fl. ital. crypt., Pars 1: Fungi. Pyrenomycetae. Xylariaceae, Valsaceae, Ceratostomataceae (Florence) 1(2): 301 (1906).

≡ Cucurbitaria broussonetiae Sacc., Atti Soc. Veneto-Trent. Sci. Nat. 2(1): 166 (1873). Other accepted species: Species Fungorum – search Thyridaria.

 

image

 

Figure 1 – Thyridaria broussonetiae (S F6232, holotype). a Herbarium material.
b–d Ascomata semi-immersed in the host. e Vertical hand section of ascoma. f Vertical hand section through peridium. g Pseudoparaphyses. h–l Asci with ascospores (Note l shows asci stain with cotton blue). m–q Ascospores. Scale bars: b = 500 μm, c, d = 200 μm, e = 50 μm, f = 25 μm, g, m–q = 5 μm, h–l = 10 μm.

 

References

Barr ME. 1979a – A classification of Loculoascomycetes. Mycologia 71, 935–995.

Barr ME. 1979b – On the Massariaceae in North America. Mycotaxon 9, 17–37.

Barr ME. 2003 – The affinities of Thyridaria. Mycotaxon 88, 271–278.

Dennis RWG. 1978 – British ascomycetes, 3rd edn. J. Cramer, Vaduz.

Jaklitsch WM, Voglmayr H. 2016 – Hidden diversity in Thyridaria and a new circumscription of the Thyridariaceae. Studies in Mycology 85, 35–64.

Luttrell ES. 1973 – Loculoascomycetes. In: Ainsworth GC, Sparrow FK, Sussman AS (eds), The fungi. An advanced treatise, a taxonomic review with keys: ascomycetes and fungi imperfecti. Academic Press, New York, pp 135–219.

Müller E, von Arx JA. 1973 – Pyrenomycetes: Meliolales, Coronophorales, Sphaeriales. New exotic fungi. Grevillea 17, 42–43.

Munk A. 1957 – Danish pyrenomycetes: A preliminary flora. Dansk Botanisk Arkiv 17, 1–491.

Wehmeyer LE. 1941 – A revision of Melanconis, Pseudovalsa, Prosthecium, and Titania. University of Michigan Studies, Scientific Series 14, 1–161.

Wehmeyer LE. 1975 – The pyrenomycetous fungi. Mycologia Memoir No. 6. The New York Botanical Garden. J. Cramer Publishing, Germany.

 

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 23 March 2026 

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