China is a diversity hotspot for fungi of the Boletaceae family (boletes). Many boletes have been traditionally treated as members of the genus Tylopidus based on the color of the hymenophores or the spore prints. The aims of this book are to delimit and recognize the diversity both of the genera and species of Tylopilus s.l. in China. Our morphological and multi locus phylogenetic studies reveal that the traditinally defined Tylopilus species cluster in 19 genera in Boletaceae, ineluding two new genera, viz. Abtylopilus Yan C. Li & Zhu L. Yang and Anthracopons Yan C. Li & Zhu L. Yang and 17 known genera, viz. Austroboletus (Cormer) Wolfe, Chiua Yan C. Li & Zhu L. Yang, Fistulinella Henn, Harrya Halling, Nuhn & Osmundson, Hymenoboletus Yan C. Li & Zhu L. Yang, Indoporus A. Parihar, K. Das, Hembrom & Vizzini, Lecinellum Bresinsky & Manfr. Binder, Mucilopilus Wolfe, Porphyrellus E-J. Gilbert, Pseudoaustroboletus YanC. Li & Zhu L. Yang. Retiboletus Manfr. Binder & Bresinsky, Royoungia Castellano, Trappe & Ma lajczuk, Sutorius Halling, Nuhn & NA. Fechner, Tylocinwm YanC. Li & Zhu L. Yang, Tylopilus P. Karst, Veloporphyelus L.D. Gomez & Singer, and Zangia Yan C. Li & Zhu L. Yang. A total of 19 genera and 105 species including 34 new species and four new combinations are documented and ilustrated in this monographic work. This isa reprint of the 2021 edition (Li and Yang 2021), with minor revisions, in accordance with the relevant contract between Springer and Science Press.