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

Citation

Du, R and Wu, F and Gate, G and Dai, Y-C and Tian, X-M, Taxonomy and phylogeny of Sidera (Hymenochaetales, Basidiomycota): four new species and keys to species of the genus, MycoKeys, 68 pp. 115-135. ISSN 1314-4057 (2020) [Refereed Article]


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Copyright 2020 Rui Du et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.3897/mycokeys.68.53561

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 3.84.4 0.91.3 μm. Sidera parallela differs from other poroid species in the genus by having parallel tramal hyphae in combination with lunate basidiospores measuring 2.83.3 0.91.2 μm. Sidera srilankensis have generative and skeletal hyphae co-dominating at the dissepiment edges, and lunate basidiospores measuring 3.54 11.3 μm. Sidera tenuis is distinguished by small pores (810 per mm) and relatively long allantoid basidiospores measuring 4.25 0.81 μm. Sidera minutipora is characterized by buff to olivaceous buff basidiomata when dry, 57 pores per mm, rosette-like crystals rare, and allantoid basidiospores measuring 3.74.3 11.3 μm. An identification key to all accepted species is provided.

Item Details

Item Type:Refereed Article
Keywords:phylogeny, Rickenellaceae, taxonomy, wood-rotting fungi, polypores
Research Division:Biological Sciences
Research Group:Genetics
Research Field:Genetics not elsewhere classified
Objective Division:Environmental Management
Objective Group:Other environmental management
Objective Field:Other environmental management not elsewhere classified
UTAS Author:Gate, G (Dr Genevieve Gates)
ID Code:139870
Year Published:2020
Deposited By:Plant Science
Deposited On:2020-07-10
Last Modified:2020-08-17
Downloads:3 View Download Statistics

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