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      Taxonomy and phylogeny of Sidera (Hymenochaetales, Basidiomycota): four new species and keys to species of the genus

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          Abstract

          Sidera is a polypore genus with white to cream or buff basidiomata, whose species in Hymenochaetales are poorly known. We study the phylogeny and diversity of Sidera based on our recent collections from tropic and subtropic Asian-Pacific regions. Phylogenetic analyses based on the internal transcribed spacer (ITS) and nuclear large subunit (nLSU) ribosomal RNA gene regions indicate that ten terminal lineages are well supported within Sidera . Based on morphological examination and phylogeny, four new species, viz. Sidera minutissima , S. parallela , S. srilankensis and S. tenuis are described, and a new combination, Sidera minutipora , is proposed. All these species are illustrated. Sidera minutissima is characterized by tiny basidiomata with bluish pores when fresh, generative hyphae dominating at the dissepiment edges, the presence of cystidioles, and allantoid basidiospores measuring 3.8–4.4 × 0.9–1.3 μm. Sidera parallela differs from other poroid species in the genus by having parallel tramal hyphae in combination with lunate basidiospores measuring 2.8–3.3 × 0.9–1.2 μm. Sidera srilankensis have generative and skeletal hyphae co-dominating at the dissepiment edges, and lunate basidiospores measuring 3.5–4 × 1–1.3 μm. Sidera tenuis is distinguished by small pores (8–10 per mm) and relatively long allantoid basidiospores measuring 4.2–5 × 0.8–1 μm. Sidera minutipora is characterized by buff to olivaceous buff basidiomata when dry, 5–7 pores per mm, rosette-like crystals rare, and allantoid basidiospores measuring 3.7–4.3 × 1–1.3 μm. An identification key to all accepted species is provided.

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          Most cited references 24

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          Hymenochaetaceae (Basidiomycota) in China

           Yu-Cheng Dai (2010)
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            Sidera, a new genus in Hymenochaetales with poroid and hydnoid species

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              Type studies of Polyporaceae (Aphyllophorales) described by J. Rick

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                Author and article information

                Contributors
                Journal
                MycoKeys
                MycoKeys
                11
                urn:lsid:arphahub.com:pub:C004A564-9D6A-5F9F-B058-6A3815DFE9C3
                MycoKeys
                Pensoft Publishers
                1314-4057
                1314-4049
                2020
                07 July 2020
                : 68
                : 115-135
                Affiliations
                [1 ] School of Ecology and Nature Conservation, PO Box 61, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China
                [2 ] Tasmanian Institute of Agriculture, Private Bag 98, Hobart, Tasmania 7001, Australia Tasmanian Institute of Agriculture Tasmania Australia
                [3 ] Shandong Provincial Key Laboratory of Applied Mycology, Qingdao Agricultural University, Qingdao 266109, China Qingdao Agricultural University Qingdao China
                Author notes
                Corresponding author: Yu-Cheng Dai ( yuchengd@ 123456yahoo.com ); Xue-Mei Tian ( txm@ 123456qau.edu.cn )

                Academic editor: K. Hosaka

                Article
                53561
                10.3897/mycokeys.68.53561
                7360635
                Rui Du, Fang Wu, Genevieve M. Gates, Yu-Cheng Dai, Xue-Mei Tian

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Categories
                Research Article
                Hymenochaetales
                Phylogeny
                Taxonomy

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