{"references": ["1.\tAkzhygitova NI, Breckle SW, Winkler G, et al. (2003) Botanical geography of Kazakhstan and Middle Asia (desert region). Boston-Spectrum, St. Peterburg, Russia: 1-424 (in Russ.).", "2.\tSadyrova G.A. To the review of the desert vegetation of the Ketmen ridge // Izvestiya NAS RK. - Ser. Biol. - 2008, No. 1. - P. 8-11 (in Russ.).", "3.\tSadyrova G.A. Baitulin I.O., Lysenko V.V. Vegetation of the Ketmen-Temerlik ridge // Izvestiya NAS RK. - Ser. Biol. - 2009, No. 3. - P. 3-13 (in Russ.).", "4.\tPoliksenova VD, Khramtsov AK, Piskun SG (2004) Guidelines for the special practicum in the section Mycology, methods of experimental study of microscopic fungi.\" BSU, \u041cinsk, Belorussia: 1-36 (in Russ).", "5.\tByzova ZM, Vasyagina MP (1981) Flora of spore plants of Kazakhstan. Ascomycetous fungi. 1. V. 12. Nauka, Alma-Ata, KZ: 1-243 (in Russ.).", "6.\tByzova ZM, Vasyagina MP, Deyeva NG, et al. (1967) Flora of spore plants of Kazakhstan. Imperfect fungi. 1. V. 5. Nauka, Alma-Ata, KZ: 1-340 (in Russ.).", "7.\tByzova ZM, Vasyagina MP, Deyeva NG, et al. (1968) Flora of spore plants of Kazakhstan. Imperfect fungi. 2. V. 5. Nauka, Alma-Ata, KZ: 1-383 (in Russ.).", "8.\tByzova ZM, Vasyagina MP, Deyeva NG, et al. (1970) Flora of spore plants of Kazakhstan. Imperfect fungi. 3. V. 5. Nauka, Alma-Ata, KZ: 1-558 (in Russ.).", "9.\tSchwartzman SR, Vasyagina MP, Byzova ZM, et al. (1973) Flora of spore plants of Kazakhstan. Imperfect fungi (Deuteromycetes). 1. Moniliales. V. 8. Nauka, Alma-Ata, KZ: 1-528 (in Russ.).", "10.\tSchwartzman SR, Vasyagina MP, Byzova ZM, et al. (1975) Flora of spore plants of Kazakhstan. Imperfect fungi (Deuteromycetes). 2. Moniliales. V. 8. Nauka, Alma-Ata, KZ: 1-518 (in Russ.).", "11.\tVassyagina MP, Byzova ZM, Tartenova MA (1987) Flora of spore plants in Kazakhstan. Ascomycetous fungi. 2. V. 12. Nauka, Alma-Ata, KZ: 1-293 (in Russ.).", "12.\tBraun U, Cook RTA. (2012) Taxonomic manual of the Erysiphales (powdery mildews). CBS-KNAW Fungal Biodiversity Centre, Utrecht, the Netherlands: 1-707.", "13.\tRakhimova YV, Nam GA, Yermekova BD (2014) A brief illustrated guide to powdery mildew fungi in Kazakhstan and border areas. TsRNS Publishing House, Novosibirsk, Russia: 1-129 (in Russ.).", "14.\tPlantarium, the determinant of plants on-line (www.plantarium.ru) (accessed July 15, 2022).", "15.\tIndex Fungorum Database (http://www.indexfungorum.org/names/names.asp) (accessed July 15, 2022)."]}

Abstract The mycobiota of the Ketmen ridge has 151 species belonging to Ascomycota. The аscomycetes are represented by 14 orders from 5 classes. The highest number of orders is characteristic of the class Sordariomycetes. The largest order is the order of Erysiphales from the class Leotiomycetes, with 38 species from 8 genera. The largest genera are Erysiphe (13 species), Podosphaera (9) and Golovinomyces (8). 13 genera have an unclear systematic position. Ascomycetes attack 183 species of vascular plants and mushrooms. The greatest number of species of ascomycetes (109 species) is noted in the steppe belt of the Ketmen ridge: on the northern macroslope 51 species from 44 genera, on the southern macroslope 42 species from 25. The following species are widely distributed in the territory of the study: Erysiphe polygoni, Leveillula taurica, Neoerysiphe galeopsidis and Podosphaera aphanis.утп