title: The genus Retiboletus in China.
abstract: Species of the genus Retiboletus (Boletaceae, Boletales) in China are investigated based on morphology and phylogenetic analyses of DNA sequences from nuc rDNA internal transcribed spacer (ITS) and partial 28S regions and sequences from the translation elongation factor 1-a gene (tef1a). Six lineages are recovered among the collections studied. Five of these are documented and presented in the present paper, including three new species and two new combinations. The remaining species is not described due to the paucity of material. The specimens from China identified as "R. ornatipes" or "R. retipes" are in fact R. sinensis or R. kauffmanii, those labeled "R. griseus" are either R. fuscus or R. pseudogriseus A key to all known taxa of the genus is provided. Phylogenetic relationships of taxa within Retiboletus are partially resolved. A preliminary biogeographical analysis shows that allied species of Retiboletus between eastern Asia and North/Central America are common but there are no Retiboletus species common to both continents. Species of Retiboletus in Japan and southern China are conspecific or closely related.
authors.affiliation: College of Pharmacy, Hainan Medical University, Haikou 571199, China.
authors.forename: Nian-Kai
authors.initials: NK
authors.lastname: Zeng
authors.affiliation: College of Pharmacy, Hainan Medical University, Haikou 571199, China.
authors.forename: Zhi-Qun
authors.initials: ZQ
authors.lastname: Liang
authors.affiliation: Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.affiliation: Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
authors.forename: Yan-Chun
authors.initials: YC
authors.lastname: Li
authors.affiliation: Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China fungi@mail.kib.ac.cn.
authors.forename: Zhu L
authors.initials: ZL
authors.lastname: Yang
authors.affiliation: College of Materials and Chemistry Engineering, Hainan University, Haikou 570228, China.
authors.forename: Zhi-Qun
authors.initials: ZQ
authors.lastname: Liang
mesh_terms: D001487:Basidiomycota / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000502:physiology; D002681:China; D048690:Fruiting Bodies, Fungal / Q000145:classification / Q000502:physiology; D010802:Phylogeny; D013045:Species Specificity
keywords: biogeography; boletes; new taxa; systematics; taxonomy