Abstract

Ganoderma sichuanense (Ganodermataceae) is a medicinal mushroom originally described from China and previously confused with G. lucidum. It has been widely used as traditional medicine in Asia since it has potential nutritional and therapeutic values. We collected 8 specimens of Ganoderma species from Thailand and show that they represent the first record of G. sichuanenese for Thailand. In this paper, we describe our specimens of Ganoderma sichuanense based on fresh basidiomes, and provide line drawings and photographs. The data from macro- and microscopic features are consistent with the characteristics of the species. Analysis of ITS sequence data indicates that the Thai collections cluster in same species clade as the epitype of G. sichuanense.

Highlights

  • The genus Ganoderma was established by Karsten (1881) based on Ganoderma lucidum (Curtis) P

  • The traditional taxonomy of Ganoderma is based on morphological traits, and the genus was divided into two distinct groups, the laccate (G. lucidum complex) and the non–laccate (G. applanatum complex) groups, which correspond to the subgenera Ganoderma and Elfvingia, respectively (Zheng et al 2007)

  • The aim of this study is to report and illustrate the new findings of this medicinal species in Thailand and further, to improve the understanding of species delimitation in the genus Ganoderma

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Summary

Introduction

The genus Ganoderma was established by Karsten (1881) based on Ganoderma lucidum (Curtis) P. The genus Ganoderma includes the subgenera Ganoderma (which in turn includes sections Ganoderma and Phaenema), Elfvingia, and Trachyderma (Zhao and Zhang 2000). Many members of this genus are found in subtropical and tropical regions and appear to thrive in hot and humid conditions (Pilotti et al 2004). Bioactive compounds from Ganoderma show a huge structural and chemical diversity (Deepalakshmi and Mirunalini 2011). There are 437 epithets listed in Index Fungorum (2017) for Ganoderma, of which 414 are accepted by Species Fungorum in May, 2017) (http://www.speciesfungorum.org/Names/Names.asp)

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