Phylogenetic classification of arbuscular mycorrhizal fungi: new species and higher-ranking taxa in Glomeromycota and Mucoromycota (class Endogonomycetes) Author Tedersoo, Leho Mycology and Microbiology Center, University of Tartu, 2 Liivi, 50409 Tartu, Estonia & Department of Zoology, College of Science, King Saud University, 12371 Riyadh, Saudi Arabia Author Magurno, Franco 0000-0002-3117-8149 Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28, 40 - 032 Katowice, Poland Author Alkahtani, Saad 0000-0001-7381-5110 Department of Zoology, College of Science, King Saud University, 12371 Riyadh, Saudi Arabia Author Mikryukov, Vladimir 0000-0003-2786-2690 Mycology and Microbiology Center, University of Tartu, 2 Liivi, 50409 Tartu, Estonia text MycoKeys 2024 2024-08-09 107 249 271 journal article 10.3897/mycokeys.107.125549 Kungsaengena Tedersoo gen. nov. Type species. Kungsaengena shadiae Tedersoo. Description. Covers the monophyletic group in Kungsaengenaceae (Fig. 2 ). Phylogenetically delimited as the least inclusive clade covering sequence accessions EUK 1603402 and EUK 1602136 (Suppl. material 3 ). Notes. Based on ITS and LSU sequences, Kungsaengena comprises 5–6 species. Other putative species in this genus are represented by sequences EUK 1603803 ( GSMc plot G 5906, stadium soil in Karksi-Nuia, Estonia , 58.10088 ° N , 25.55959 ° E ); EUK 1603124 ( GSMc plot G 5003, Pinus sylvestris forest soil in Naissaar, Estonia , 59.5634 ° N , 24.5451 ° E ); EUK 1217319 (FunAqua sample W 0279 s, lake sediment near Bezdan, Serbia , 45.82031 ° N , 18.9599 ° E ); and MW 215857 (forest nursery soil in Lithuania ).