Fungalpedia – Note 1259, Arwidssonia
Arwidssonia B. Erikss.
Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Hypocreaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Arwidssonia has immersed ascomata opening by 3–5 lobes, cylindrical to slightly saccate asci, with J+, apical rings and hyaline, (1–)3(–5)-septate ascospores (Wang & Hyde 1999). In this study, we examined the holotype of Arwidssonia empetri and accept it in Hyponectriaceae based on its morphology (Barr 1990b, Wang & Hyde 1999, Maharachchikumbura et al. 2016b, Wijayawardene et al. 2018a).
Type species: Arwidssonia empetri (Rehm) B. Erikss.
Other accepted species: Species Fungorum – search Arwidssonia.
Figure 1 – Arwidssonia empetri (Material examined – NORWAY: Hedmark: 50 km W of Tynset: Tatasjöhöi; on dead attached leaves of Empetrum nigrum, 23 August 1985, P.F. Cannon, IMI 312725, holotype). a Material label. b Specimen. c, d Ascomata on the upper leaf surface. e Close up of ascomata. f Section of ascoma. g Paraphyses. h Peridium. i J+, reaction of apical ascal ring stained with Melzer’s reagent. j-m Asci. n-s Ascospores. Scale bars: e = 1000 µm, d = 500 μm, e = 200 μm, f = 50 μm, g-h, j-s =10 μm, i-m = 20 μm.
References
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