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As the continuation of Fungal Diversity Notes series, the current paper is the 16th contribution to this series. A total of 103 taxa from seven classes in Ascomycota and Basidiomycota are included here. Of these 101 taxa, four new genera, 89 new species, one new combination, one new name and six new records are described in detail along with information of hosts and geographic distributions. The four genera newly introduced are Ascoglobospora, Atheliella, Rufoboletus and Tenuimyces. Newly described species are Akanthomyces xixiuensis, Agaricus agharkarii, A. albostipitatus, Amphisphaeria guttulata, Ascoglobospora marina, Astrothelium peudostraminicolor, Athelia naviculispora, Atheliella conifericola, Athelopsis subglaucina, Aureoboletus minimus, A. nanlingensis, Autophagomyces incertus, Beltrania liliiferae, Beltraniella jiangxiensis, Botryobasidium coniferarum, Calocybella sribuabanensis, Calonarius caesiofulvus, C. nobilis, C. pacificus, C. pulcher, C. subcorrosus, Cortinarius flaureifolius, C. floridaensis, C. subiodes, Crustomyces juniperi, C. scytinostromoides, Cystostereum subsirmaurense, Dimorphomyces seemanii, Fulvoderma microporum, Ginnsia laricicola, Gomphus zamorinorum, Halobyssothecium sichuanense, Hemileccinum duriusculum, Henningsomyces hengduanensis, Hygronarius californicus, Kneiffiella pseudoabdita, K. pseudoalutacea, Laboulbenia bifida, L. tschirnhausii, L. tuberculata, Lambertella dipterocarpacearum, Laxitextum subrubrum, Lyomyces austro-occidentalis, L. crystallina, L. guttulatus, L. niveus, L. tasmanicus, Marasmius centrocinnamomeus, M. ferrugineodiscus, Megasporoporia tamilnaduensis, Meruliopsis crystallina, Metuloidea imbricata, Moniliophthora atlantica, Mystinarius ochrobrunneus, Neomycoleptodiscus alishanense, Nigrograna kunmingensis, Paracremonium aquaticum, Parahelicomyces dictyosporus, Peniophorella sidera, P. subreticulata, Phlegmacium fennicum, P. pallidocaeruleum, Pholiota betulicola, P. subcaespitosa, Pleurotheciella hyalospora, Pleurothecium aseptatum, Resupinatus porrigens, Russula chlorina, R. chrysea, R. cruenta, R. haematina, R. luteocarpa, R. sanguinolenta, Synnemellisia punensis, Tenuimyces bambusicola, Thaxterogaster americanoporphyropus, T. obscurovibratilis, Thermoascus endophyticus, Trechispora alba, T. perminispora, T. subfarinacea, T. tuberculata, Tremella sairandhriana, Tropicoporus natarajaniae, T. subramaniae, Usnea kriegeriana, Wolfiporiella macrospora and Xylodon muchuanensis. Rufoboletus hainanensis is newly transferred from Butyriboletus, while a new name Russula albocarpa is proposed for Russula leucocarpa G.J. Li & Chun Y. Deng an illegitimate later homonym of Russula leucocarpa (T. Lebel) T. Lebel. The new geographic distribution regions are recorded for Agaricus bambusetorum, Bipolaris heliconiae, Crinipellis trichialis, Leucocoprinus cretaceus, Halobyssothecium cangshanense and Parasola setulosa. Corresponding to morphological characters, phylogenetic evidence is also utilized to place the above-mentioned taxa in appropriate taxonomic positions. The current morphological and phylogenetic data is helpful for further clarification of species diversity and exploration of evolutionary relationships in the related fungal groups. 

Abstract Fungi are highly diverse organisms, which provide multiple ecosystem services. However, compared with charismatic animals and plants, the distribution patterns and conservation needs of fungi have been little explored. Here, we examined endemicity patterns, global change vulnerability and conservation priority areas for functional groups of soil fungi based on six global surveys using a high‐resolution, long‐read metabarcoding approach. We found that the endemicity of all fungi and most functional groups peaks in tropical habitats, including Amazonia, Yucatan, West‐Central Africa, Sri Lanka, and New Caledonia, with a negligible island effect compared with plants and animals. We also found that fungi are predominantly vulnerable to drought, heat and land‐cover change, particularly in dry tropical regions with high human population density. Fungal conservation areas of highest priority include herbaceous wetlands, tropical forests, and woodlands. We stress that more attention should be focused on the conservation of fungi, especially root symbiotic arbuscular mycorrhizal and ectomycorrhizal fungi in tropical regions as well as unicellular early‐diverging groups and macrofungi in general. Given the low overlap between the endemicity of fungi and macroorganisms, but high conservation needs in both groups, detailed analyses on distribution and conservation requirements are warranted for other microorganisms and soil organisms.