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 Parvocarpum Magurno gen. nov. Type species. Parvocarpum badium (Oehl, Redecker & Sieverd.) Magurno. Description. Producing glomoid-like spores surrounding a central plexus of interwoven hyphae in small organised fruiting bodies, lacking a peridium. Spores with inner flexible hyaline layer and short subtending hyphae. Forms a monophyletic group within Glomeraceae based on SSU- ITS - LSU phylogram (Fig. 1 , Suppl. material 1 ). Notes. Based on ITS and LSU sequences, Parvocarpum includes 10–20 species.