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Type: Article
Published: 2018-08-30
Page range: 25–37
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Description of Dermea persica (Dermateaceae, Helotiales), a new asexual Ascomycete from Iran, and an updated key to Dermea species

Department of Plant Protection, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
Department of Botany, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, People’s Republic of China Center of Excellence in Fungal Research, Chiang Rai 57100, Thailand
Fungi Coelomycetes Inoperculate Discomycetes Phylogeny Ribosomal DNA Taxonomy

Abstract

We found one specimen of Dermea on dead branches of an unknown tree in Arasbaran forests of Iran in 2015. Based on phylogenetic analysis of combined ITS, LSU, SSU sequence data, as well as morphological observations, a new species of Dermea, D. persica, is described and illustrated here. This species, the only species of Dermea lacking a sexual morph, is mainly characterized by beaked pycnidia, hyaline to pale brown at the base and dark brown at the apex, opening by a circular ostiole, discrete or integrated conidiogenous cells with a minute periclinal wall thickening and falcate, aseptate conidia, 20–25(–30) × 2.5–3.5 µm, and lacking microconidia. The relatedness between D. persica and its close relatives is discussed. An updated key to Dermea species is also provided.

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