Fungalpedia – Note 1944, Pseudohalonectria

 

Pseudohalonectria Minoura & T. Muroi

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Pseudohalonectriaceae, Incertae sedis, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Pseudohalonectria was introduced to accommodate P. lignicola (Minoura & Muroi 1978), without being assigned to an order or family (Minoura & Muroi 1978). Hongsanan et al. (2017) reviewed this genus and established a new family Pseudohalonectriaceae to accommodate this genus in Magnaporthales. The genus is characterized by bright yellow to brown ascomata, with long cylindrical, periphysate necks; unitunicate, cylindrical to clavate asci, with a J-, thimbleshaped, refractive apical rings and cylindrical, hyaline to slightly pigmented, and usually septate ascospores (Shearer 1989). Members in Pseudohalonectria are found in marine and terrestrial or freshwater habitats (Perera et al. 2016a). In this study, Pseudohalonectria lutea is illustrated.

Type species: Pseudohalonectria lignicola Minoura & T. Muroi.

Other accepted species: Species Fungorum – search Pseudohalonectria.

 

image

 

Figure 1 – Pseudohalonectria lutea (Material examined – CHINA, Tibet Autonomous Region, on submerged decaying wood, 28 April 2015, Z.L. Luo, XZ A 2–2–1, S-1048, MFLU 18–1463; living culture, MFLUCC 18–1297.). a, b Ascomata necks on decaying wood. c, d Sections of ascomata. e Peridium. f-h Asci. i Paraphyses. j Ascal apical ring in side view. k-m Ascospores. n Germinating ascospore. o, p Culture on PDA. Scale bars: c, d = 150 μm, e, i, j, n = 20 μm, f, g = 40 μm, i = 45 μm, k-m = 25 μm.

 

References

Hongsanan S, Maharachchikumbura SSN, Hyde KD, Samarakoon MC et al. 2017 – An updated phylogeny of Sordariomycetes based on phylogenetic and molecular clock evidence. Fungal Diversity 84, 25–41.

Minoura K, Muroi T. 1978 – Some freshwater ascomycetes from Japan. Transactions of the Mycological Society of Japan 19, 129–134.

Perera RH, Maharachchikumbura SSN, Ariyawansa H, Bahkali AH et al. 2016a – Two new Pseudohalonectria species on beech cupules (Fagus sylvatica) and a new genus to accommodate P. suthepensis. Phytotaxa 278, 115–131.

Shearer CA. 1989 – Pseudohalonectria (Lasiosphaeriaceae), an antagonistic genus from wood in freshwater. Canadian Journal of Botany 67, 1944–1955.

 

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 6 March 2026

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