title: Three new species of Physalacria from China, with a key to the Asian taxa.
abstract: Three new and one previously described species of Physalacria (Physalacriaceae, Agaricales) are reported from China. Specimens of two additional species described from Malaysia and North America were studied for comparison. Placements of these species were corroborated based on morphological observations and molecular evidence from partial sequences of the nuc rDNA internal transcribed spacer regions (ITS) and the 28S D1-D3 region, and genes for translation elongation factor 1-α (tef1α) and the second largest subunit of RNA polymerase II (rpb2). These new species of Physalacria distributed in subtropical China were found on rotten wood of broadleaf trees or bamboo and possess stipitate-capitate basidiomata with four-spored basidia, clamp connections and smooth, inamyloid basidiospores. To facilitate studies of the genus in Asia, a key is provided for all Physalacria species reported from this region.
authors.affiliation: Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China, and University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Jiao
authors.initials: J
authors.lastname: Qin
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
mesh_terms: D000363:Agaricales / Q000145:classification* / Q000166:cytology / Q000235:genetics; D001483:Base Sequence; D002681:China; D004271:DNA, Fungal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D048690:Fruiting Bodies, Fungal; D008969:Molecular Sequence Data; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013172:Spores, Fungal
chemical_list: D004271:DNA, Fungal; D021903:DNA, Ribosomal Spacer
keywords: Asia; Physalacriaceae; new species; phylogeny; taxonomy