Journal
PHYTOTAXA
Volume 347, Issue 1, Pages 71-80Publisher
MAGNOLIA PRESS
DOI: 10.11646/phytotaxa.347.1.4
Keywords
bolete; molecular phylogeny; morphology; new taxon; taxonomy
Categories
Funding
- National Natural Science Foundation of China [31560005, 31360008, 31400024]
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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-alpha gene (tef1-alpha) 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.
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