Fungalpedia – Note 1816, Acrocordiella

 

Acrocordiella. O.E. Erikss.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Requienellaceae, Xylariales, Xylariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Notes – Acrocordiella is characterised by solitary or small groups of immersed ascomata with white or black margins, a peridium comprising brown to hyaline, thick-walled cells of textura angularis and 3-distoseptate ascospores with rhomboid lumina. This genus has been considered as a synonym of Requienella (Boise 1986). Wijayawardene et al. (2018a) listed Acrocordiella in Pyrenulaceae. However, Jaklitsch et al. (2016b) and Maharachchikumbura et al. (2016b) confirmed Acrocordiella and Requienella as distinct genera of Requienellaceae in Xylariales (Sordariomycetes) based on phylogenetic analyses.

 

Type species: Acrocordiella occulta (Romell) O.E. Erikss., Mycotaxon 15: 189 (1982).

Other accepted species: Species Fungorum – search Acrocordiella.

 

image

 

Figure 1 – Requienella seminuda (a, b, d, e, h, i, j), Requienella fraxini (c, k, l), Acrocordiella occulta (j, m, n) redrawn from Jaklitsch et al. (2016b). a Ascomata. b, c Sections of ascomata. d, e Asci and paraphyses. e Apical region of asci. f-k Ascospores. Scale bars:
a = 0.2 mm, b = 0.2 mm, c = 0.3 mm, d = 25 μm, d, f = 15 μm, e, k, l, n = 10 μm, i, j, m = 7 μm.

 

References

Boise J. 1986 – Requienellaceae, a New Family of Loculoascomycetes. Mycologia 78, 37–41.

Jaklitsch WM, Gardiennet A, Voglmayr H. 2016b – Resolution of morphology-based taxonomic delusions: Acrocordiella, Basiseptospora, Blogiascospora, Clypeosphaeria, Hymenopleella, Lepteutypa, Pseudapiospora, Requienella, Seiridium and Strickeria. Persoonia 37, 82–105.

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

Wijayawardene NN, Hyde KD, Lumbsch HT, Liu JK et al. 2018a – Outline of Ascomycota: 2017. Fungal Diversity 88, 167–263.

 

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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