Crocinoboletus, a new genus of Boletaceae (Boletales) with unusual boletocrocin polyene pigments

• DOI: 10.11646/phytotaxa.175.3.2
• Publication Date: 2014-08-13T13:28:10Z
• Authors: Nian-Kai Zeng; Gang Wu; Yan-Chun Li; Zhi-Qun Liang; Zhu-Liang Yang
• Keywords: Pileus; Basidiocarp; Agaricomycetes; Boletus

Crocinoboletus is described as a new genus of Boletaceae to accommodate Boletus rufoaureus and B. laetissimus, characterized by its brilliant orange color basidiomata caused the presence unusual boletocrocin polyene pigments, bluish olivaceous staining all parts when bruised, smooth basidiospores, pileipellis which has an interwoven trichoderm at middle part pileus cutis margin pileus. Prior molecular phylogenetic analyses also confirmed two taxa are not members s.s., but form well-supported generic lineage within Boletaceae. Consequently description, photos fresh basidiomata, line-drawings microstructures comparison with allied presented.