Fungalpedia – Note 2190, Paraconiothyrium
Paraconiothyrium. Verkley.
Citation when using this data: Afshari N et al. 2025 – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Didymosphaeriaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Type species: xxx
Other accepted species: Species Fungorum – search Paraconiothyrium.
Paraconiothyrium was erected by Verkley et al. (2004) to accommodate four species based on morphology and phylogeny (ITS and SSU gene regions). Currently 32 species of Paraconiothyrium have been listed in Index Fungorum (2025). Conidiomata are typically estromatic or pycnidial, solitary, subglobose to globose, and have relatively thick walls. Conidiophores are reduced to conidiogenous cells that are phialidic, conical to subulate or subcylindrical, doliiform or elongated ampulliform shapes. Conidia are variously-shaped, initially hyaline, 0–1-septate, either smooth-walled or minutely verrucose, and range from hyaline to brown. Paraconiothyrium fuckelii, P. magnoliae, P. thysanolaenae, and P. iridis were documented for their sexual morphology, with only P. fuckelii displaying both sexual and asexual forms (Wang et al. 2021b). DNA-based comparative studies have proven valuable in phylogenetics and have been employed to assess the genetic diversity of Paraconiothyrium. For instance, Paraconiothyrium shares similarities with Coniothyrium sensu stricto and Alloconiothyrium from two different families. Therefore, phylogenetic analysis is necessary to determine the appropriate generic classification of Paraconiothyrium-like species (Wijayawardene et al. 2016). In this study, we document Paraconiothyrium archidendri as the first sexual morph and a new host record on Dipterocarpus alatus from Doi Tung National Park, Thailand.
Type species: Paraconiothyrium estuarinum Verkley & Manuela Silva, in Verkley, da Silva, Wicklow & Crous, Stud. Mycol. 50(2): 327 (2004).
Other accepted species: Species Fungorum – search Paraconiothyrium.
Figure 1 – Paraconiothyrium archidendri (MFLU 24-0399, a new host record and first report of the sexual morph). a, b Appearance of ascomata on Dipterocarpus alatus woody litter. c, d Vertical sections of ascomata. e Section of peridium. f Pseudoparaphyses. g–m Asci.
n–s Ascospores. t Colonies on PDA (front and reverse). Scale bars: a = 1 mm, b = 200 μm, c, d = 50 μm, e–m = 20 μm, n–s = 10 μm.
References
Index Fungorum. 2025 – Available online: http://www.indexfungorum.org/names/Names.asp (accessed on 10 December 2025).
Entry by
Naghmeh Afshari, Department of Biology, Faculty of Sciences, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Center of Excellence in Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai 50200, Thailand
Published online 24 March 2026