Fungalpedia – Note 1168, Dichotomopilus

 

Dichotomopilus X. Wei Wang, Samson & Crous

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

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Chaetomiaceae, Sordariales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

The genus Dichotomopilus was established by Wang et al. (2016a) to include two new species, D. pseudofunicla and D. pseudoerectus, and another ten species transferred from Chaetomium. A new collection of D. ramosissimum was recorded on Clematis vitalba in the UK by Phukhamsakda et al. (2020). The genus is characterised by superficial, sphaerical, ellipsoid or ovate, ostiolate ascomata, with seta-like, branched, often ornamented terminal hairs, unbranched, seta-like lateral hairs tapering towards the apex, clavate to ovate, pedicellate, evanescent asci and fasciculate brown, ovate, bilaterally flattened ascospores attenuated at one or both ends and with apical or slightly subapical germ pores. Asexual morphs are undetermined. Dichotomopilus ramosissimus is illustrated in this entry

Type species: Dichotomopilus indicus (Corda) X. Wei Wang & Samson.

Other accepted species: Species Fungorum – search Dichotomopilus.

 

image

 

Figure 1 – Dichotomopilus ramosissimus (Material examined – INDIA, Andaman and Nicobar Islands, North Andaman, Diglipur, Near Sita Nagar (13˚11’14.2” N 92˚53’11” E), isolated on decaying twig of Dolichandrone spathacea, 17 May 2018, M. Niranjan & V.V. Sarma, PUFNI 18725, (AMH-10059). a-c Ascomata on host. d, e Mature ascomata in lactophenol mount. f, g Terminal ascomatal hair. h Ascospores. i-j Colonies on malt extract agar. Scale bars: d = 200 μm, e = 100 μm, f = 20 μm, g, h = 10 μm.

 

References

Phukhamsakda C, Hyde KD, McKenzie EH, Bhat DJ et al. 2020 – Study of fungi associated with Clematis L. (Ranunculaceae) and integrated approach to delimiting species boundaries. Fungal diversity (in press).

Wang XW, Houbraken J, Groenewald JZ, Meijer M et al. 2016a – Diversity and taxonomy of Chaetomium and chaetomium-like fungi from indoor environments. Studies in Mycology 84, 145–224.

 

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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