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Issue: Vol. 309 No. 2: 13 June 2017
Type: Article
Published: 2017-06-13
DOI: 10.11646/phytotaxa.309.2.2
Page range: 118–126
Abstract views: 20
PDF downloaded: 2

A new species and a new combination of Caloboletus from China

State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou 510070, China.
State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou 510070, China.
Via Angelo Custode 4a, Anguillara Sabazia 00061, Italy.
State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou 510070, China.
Management Bureau of Xiangtoushan National Nature Reserve of Guangdong, Huizhou 516001, China.
Boletes Phylogeny Taxonomy Fungi

Abstract

A new species, Caloboletus xiangtoushanensis sp. nov., is reported from China. This medium-sized bolete is distinguished by a brownish orange to greyish yellow pileus, greyish yellow to olive yellow hymenophore that quickly stains blue when bruised, reticulate stipe, bitter taste and oblong to subfusoid basidiospores 9–13(–13.5) × 4–5  μm. On the basis of its morphological and molecular characters (ITS, nrLSU, tef1-α and rpb1), this novel taxon can be assigned to the genus Caloboletus, sister to Boletus taienus. Accordingly, a new combination C. taienus comb. nov. is also proposed in this study based on both morphological and phylogenetic evidence.