Tuesday, April 10, 2018

[Fungi • 2018] Lanmaoa rubriceps • A New Bolete (Boletaceae, Boletales) from tropical China


Lanmaoa rubriceps 

in Chai, Liang, Jiang,et al., 2018.

Abstract

Lanmaoa rubriceps (Boletaceae, Boletales) is described as a new species from Hainan Province, a tropical region of China. It is morphologically characterized by a red, crimson to orange-red pileus, a hymenophore with stuffed pores when young, pores staining blue and then changing to red-brown when injured, stipe surface staining blue when injured, and a trichodermal pileipellis with uninflated hyphae. Phylogenetic analyses of DNA sequences from part of the 28S gene, the nuc rDNA internal transcribed spacer (ITS) region, and part of the translation elongation factor 1-α gene (tef1-α) also confirmed that L. rubriceps forms an independent lineage within Lanmaoa. Consequently, a detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented. It’s worth noting that L. rubriceps falls into the genus Lanmaoa phylogenetically but morphological features of the new species match the concept of the genus Cyanoboletus. The reason for the incongruence of molecular and morphological results is that the two most closely related genera share overlapping morphological features and the most important diagnostic feature of Lanmaoa is not constant. In light of these facts, lumping of Lanmaoa and Cyanoboletus into a single genus seems justified.

Keywords: bolete, molecular phylogeny, morphology, new taxon, taxonomy, Fungi




Hui Chai, Zhi-Qun Liang, Shuai Jiang, Xun-Long Fu and Nian-Kai Zeng. 2018. Lanmaoa rubriceps, A New Bolete from tropical China.   Phytotaxa.  347(1); 71–80. DOI: 10.11646/phytotaxa.347.1.4

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