<i>Coprinus leucostictus</i> Rediscovered after a Century, Epitypified, and Its Generic Position in <i>Hausknechtia</i> Resolved by Multigene Phylogenetic Analysis of Psathyrellaceae
Chengfeng Nie,
Sheng-Nan Wang,
Zdenko Tkalčec,
Jun-Qing Yan,
Yaping Hu,
Yupeng Ge,
Qin Na,
Hui Zeng,
Hui Ding,
Guanghua Huo,
Ana Pošta,
C. K. Pradeep,
Armin Mešić
Affiliations
Chengfeng Nie
Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, Nanchang 330045, China
Sheng-Nan Wang
Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, Nanchang 330045, China
Zdenko Tkalčec
Laboratory for Biological Diversity, Ruđer Bošković Institute, 10000 Zagreb, Croatia
Jun-Qing Yan
Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, Nanchang 330045, China
Yaping Hu
Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment/State Environmental Protection Scientific Observation and Research Station for Ecological Environment of Wuyi Mountains, Nanjing 210042, China
Yupeng Ge
Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai 264025, China
Qin Na
Shandong Key Laboratory of Edible Mushroom Technology, School of Agriculture, Ludong University, Yantai 264025, China
Hui Zeng
Institute of Edible Mushroom, Fujian Academy of Agricultural Sciences: National and Local Joint Engineering Research Center for Breeding & Cultivation of Features Edible Mushroom, Fuzhou 350011, China
Hui Ding
Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment/State Environmental Protection Scientific Observation and Research Station for Ecological Environment of Wuyi Mountains, Nanjing 210042, China
Guanghua Huo
Jiangxi Key Laboratory for Conservation and Utilization of Fungal Resources, Jiangxi Agricultural University, Nanchang 330045, China
Ana Pošta
Laboratory for Biological Diversity, Ruđer Bošković Institute, 10000 Zagreb, Croatia
C. K. Pradeep
Microbiology Division, Jawaharlal Nehru Tropical Botanic Garden & Research Institute, Palode, Thiruvananthapuram 695562, Kerala, India
Armin Mešić
Laboratory for Biological Diversity, Ruđer Bošković Institute, 10000 Zagreb, Croatia
About a century after the first finding in northern Vietnam (1908), Coprinus leucostictus is rediscovered on 12 localities in southern India and southern to southeastern China, growing in evergreen subtropical or tropical forests. It is morphologically a rather unique species with coprinoid basidiomata, strongly branched and diverticulate veil hyphae, and a hymeniderm pileipellis. The BLAST search of ITS and tef-1α sequences showed its close relationship to Hausknechtia floriformis, which is not clear based on morphological characters. Multigene phylogenetic analysis of a concatenated dataset of ITS, LSU, tef-1α, and β-tubulin sequences, revealed C. leucostictus and H. floriformis as separate, but sister species. Molecular phylogenetic relationships within the family Psathyrellaceae (including 17 genera) are presented in the phylogram. The genera Hausknechtia and Candolleomyces formed two well-supported lineages and were recovered as a monophyletic group. A total of 27 sequences from the genus Hausknechtia were newly generated in this study. Coprinus leucostictus is combined as Hausknechtia leucosticta, its epitype is designated, and the hitherto monotypic genus Hausknechtia is emended. A detailed morphological description of H. leucosticta supplemented with colour photographs and line drawings is provided.
