Two new Pseudohalonectria species on beech cupules (Fagus sylvatica) and a new genus to accommodate P. suthepensis

Authors

  • REKHANI H. PERERA Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Xiaohe District, Guiyang City, Guizhou Province 550006, People’s Republic of China School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
  • SAJEEWA S. N. MAHARACHCHIKUMBURA Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, PO Box 8, Al Khoud 123, Oman
  • H. ARIYAWANSA Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Xiaohe District, Guiyang City, Guizhou Province 550006, People’s Republic of China
  • ALI H. BAHKALI Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
  • E.B. GARETH JONES Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
  • ABDULLAH M. AL-SADI Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, PO Box 8, Al Khoud 123, Oman
  • KEVIN D. HYDE School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, China
  • ZUO-YI LIU Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Xiaohe District, Guiyang City, Guizhou Province 550006, People’s Republic of China

DOI:

https://doi.org/10.11646/phytotaxa.278.2.2

Keywords:

Magnaporthales, morphology, phylogeny, Sordariomycetes, systematics

Abstract

We are studying the fungi on seeds and fruits and identified two Pseudohalonectria species from cupules of beech nut (Fagus sylvatica), collected from slightly anoxic, stagnant water in the moat in Bishops Palace, Hampshire, UK. Phylogenetic analysis of combined LSU, SSU and TEF1 sequence data provides evidence that they are new species in the genus. Pseudohalonectria hampshirensis and P. fagicola spp. nov. are introduced in this paper with descriptions, photomicrographs and molecular evidence. They are compared with closely related species in the genus and a key to the genus is provided. As a result of the phylogenetic analyses P. suthepensis is excluded from Pseudohalonectria and a new genus, Tropohalonectria is introduced to accommodate the species.

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Published

2016-10-07

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Vol. 278 No. 2: 7 October 2016

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