Morphological and molecular evidence for a new species of Rhodotus from tropical and subtropical Yunnan, China

作者：Tang, Li-Ping; Hao, Yan-Jia; Cai, Qing; Tolgor, Bau; Yang, Zhu L.^*

来源：Mycological Progress, 2014, 13(1): 45-53.

DOI：10.1007/s11557-013-0890-x

• Geographic distribution
• New taxon
• Physalacriaceae
• Species diversity
• Taxonomy

Rhodotus has been regarded as a monotypic genus, consisting of only one species, R. palmatus, for a long time. Morphological and phylogenetic studies were carried out on collections of Rhodotus from temperate, subtropical and tropical China. Our phylogenetic analysis of DNA sequences of three loci (the internal transcribed spacer, the large subunit nuclear ribosomal RNA, and the translation elongation factor-1 alpha) revealed that there are two phylogenetic species in the northern hemisphere, which is in concordance with morphological traits, supporting the division of Rhodotus into two distinct species. Rhodotus asperior is described as a new species that differs phenotypically from R. palmatus in its broadly ellipsoid to subglobose, more roughened basidiospores, longer cheilocystidia with slightly thickened wall, and its occurrence in tropical and subtropical environments. The discovery of this new taxon indicates Rhodotus has a wider distribution than previously thought.

• 出版日期2014-2
• 单位中国科学院大学; 昆明医科大学; 中国科学院昆明植物研究所; 吉林农业大学