Abstract
The Inonotus linteus complex comprises several closely related species characterized by pileate basidiomes, a heterogeneous hyphal system with a monomitic context and a dimitic hymenophoral trama. Setae are hymenial and basidiospores are broadly ellipsoid to subglobose, yellowish and thick-walled. Research to understand this complex have been particularly noticeable in East Asia. In the present paper, the complex was studied at a larger scale, including samples from Mesoamerica. Inonotus linteus, an epitype of this species being designated here, is circumscribed as a narrow sense based on morphological and phylogenetic data, and this has lead to delimiting a new species from Mesoamerica, viz. I. cubensis, and provides evidence for two additional species, I. alpinus and I. zonatus, from East Asia. Phylogenetic analyses of ITS sequences also confirmed the status of I. baumii, I. linteus, I. lonicericola, I. lonicerinus, I. vaninii, I. sanghuang, I. weigelae and I. weirianus as distinct taxa, while I. tenuicontextus is considered to be a synonym of I. weigelae. A key to 11 species in the complex is provided.
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Acknowledgments
The research was financed by the National Natural Science Foundation of China (Project Nos. 31070022, 30910103907, 31200015), Chinese Academy of Sciences Grant (Project No. KSCX2-EW-Z-9), and Shandong Provincial Natural Science Foundation of China (Project No. ZR2012CL03). Cony Decock gratefully acknowledges the financial support received from the Belgian State—Belgian Federal Science Policy through the BCCMTM research program and from the FNRS/FRFC (convention FRFC 2.4544.10). Specimens from Cuba were collected within the frame of CUD/PIC “Centro de Recursos geneticos Fungicos en Cuba”, and we are thankful to our Cuban colleagues, of which particularly Dr. Sara Herrera Figueroa, for their help during fieldworks.
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Tian, XM., Yu, HY., Zhou, LW. et al. Phylogeny and taxonomy of the Inonotus linteus complex. Fungal Diversity 58, 159–169 (2013). https://doi.org/10.1007/s13225-012-0202-9
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DOI: https://doi.org/10.1007/s13225-012-0202-9