Abstract
The genus Amanita is well represented in tropical Africa, but most previous taxonomic studies were largely based only on morphology. In this study, we used both morphological and molecular data (nLSU sequences) to infer the phylogenetic relationships of ten species of Amanita sect. Vaginatae s.l. from tropical Africa. It was found that all five species with both an annulus and commonly present clamp connections in the basidioma were clustered in the sect. Caesareae. One species with neither an annulus nor clamp connections was placed in sect. Vaginatae s.s. The remaining four taxa with an annulus, but without clamp connections were interestingly also grouped into sect. Vaginatae s.s. with strong statistical support. Consequently, the section Vaginatae s.s. should be slightly modified to include tropical species with an annulus. As a new species, A. madagascariensis was described and illustrated. Amanita tanzanica was treated as a synonym of A. mafingensis.
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Acknowledgments
We are very indebted to Dr. Marja Härkönen at Helsinki University, Finland, who has not only offered us the loan of cherished collections from Africa, but also presented her publications with colour images to us. We are grateful to Dr. J. Borovička from the Department of Nuclear Spectroscopy, Nuclear Physics Institute, the Academy of Sciences of the Czech Republic; Dr. C.K. Pradeep from the Tropical Botanical Garden and Research Institute, Kerala, India; and Mr. Gerhard Koller from Burgenland, Austria for providing specimens. We express sincere gratitude to the following herbaria: Botanical Museum of Finnish Museum of Natural History, Helsinki University, Finland (H); the Mycological Herbarium of the Royal Botanical Gardens (K), United Kingdom; and the Herbarium of Forest Mycology and Pathology, Forest Biology Division, Forestry and Forest Products Research Institute, Tsukuba, Japan (TFM). We also thank Dr. N.K. Zeng (Hainan Medical University, China), Dr. Y.C. Li, Dr. X.H. Wang and Dr. Z.W. Ge (Kunming Institute of Botany, Chinese Academy of Sciences, China) for their suggestions and kind help in improving an earlier version of this paper. This study was financially supported by the Joint Funds of the National Natural Science Foundation of China and Yunnan Provincial Government (Grant No. U1302263), Open Research Foundation of Yunnan Key Laboratory of Pharmacology for Natural Products (No. 2013G005), and Yunnan Applied Basic Research Projects-Joint Special Project (No. 2014FB016).
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Tang, L.P., Cai, Q., Lee, S.S. et al. Taxonomy and phylogenetic position of species of Amanita sect. Vaginatae s.l. from tropical Africa. Mycol Progress 14, 39 (2015). https://doi.org/10.1007/s11557-015-1061-z
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DOI: https://doi.org/10.1007/s11557-015-1061-z