Delgado, GregorioMiller, Andrew N.Crous, Pedro W.Koukol, Ondrej2025-09-162025Gregorio Delgado, Andrew N. Miller, Pedro W. Crous & Ondřej Koukol (04 Sep 2025): New genera, species, combinations, and synonyms of saprobic Dothideomycetes and Sordariomycetes from subtropical Texas, USA, Mycologia, DOI: 10.1080/00275514.2025.2540233.0027-5514 (print)1557-2536 (online)10.1080/00275514.2025.2540233http://hdl.handle.net/2263/104318DATA AVAILABILITY STATEMENT : All specimens studied are deposited in herbaria ILLS, BPI, or PRC, and strains are preserved in the international culture collections CBS or CCF. All new genera, species, and combinations have been registered in MycoBank (https://www.mycobank.org/). All new sequence data were deposited in GenBank (https://www.ncbi.nlm.nih.gov) under accession numbers given in . Sequence alignments are available as SUPPLEMENTARY FILES and hosted on Taylor & Francis’ figshare platform (https://tandf.figshare.com/umyc). SUPPLEMENTARY MATERIAL Supplementary Figure 1. Acrodictys_ITS_MLtree. Supplementary Figure 2. Acrodictys_28S_MLtree. Supplementary Figure 3. Acrodictys_RPB2_MLtree. Supplementary Figure 4. Distoseptispora_ITS_MLtree. Supplementary Figure 5. Distoseptispora_28S_MLtree. Supplementary Figure 6. Ernakulamia_ITS_MLtree. Supplementary Figure 7. Ernakulamia_28S_MLtree. Supplementary Figure 8. Xylariales_ITS_MLtree. Supplementary Figure 9. Xylariales_28S_MLtree. Supplementary Figure 10. Xylariales_RPB2_MLtree. Supplementary Figure 11. Piepenbringia_28S_MLtree. Supplementary Figure 12. Piepenbringia_RPB2_MLtree. Supplementary Figure 13. Pleopunctum_ITS_MLtree. Supplementary Figure 14. Pleopunctum_28S_MLtree. Supplementary Figure 15. Pleopunctum_RPB2_MLtree. Supplementary Figure 17. Tubeufia_28S_MLtree. Supplementary Figure 16. Tubeufia_ITS_MLtree. Supplementary Figure 17. Tubeufia_28S_MLtree. Supplementary Figure 18. Tubeufia_RPB2_MLtree. Supplementary Table 1. Supplementary Table 2.As a result of long-term field work in subtropical Texas, USA, three novel genera and three new species are introduced in Pezizomycotina to accommodate new or previously described taxa lacking DNA sequence data. In the Dothideomycetes, Piepenbringia, gen. nov. is established for Taeniolella multiplex (Pleosporales incertae sedis) distant from the type species T. exilis in Kirschsteiniotheliales. Ernakulamia americana, sp. nov. (Tetraplosphaeriaceae, Pleosporales), collected on dead leaves of Sabal minor (Arecaceae), forms a distinct monophyletic lineage distant from representative strains of E. cochinensis, the type species. In the Sordariomycetes, Pseudotaeniolella, gen. nov. is introduced for Taeniolella sabalicola in Distoseptisporaceae (Distoseptisporales), also distant from T. exilis in the Dothideomycetes. Parapenzigomyces ampelinus, gen. et sp. nov. collected on dead stems of hanging vines, forms a strongly supported lineage in Xylariales distant from the type species of Penzigomyces, P. nodipes, in Chaetosphaeriales. A new combination in Parapenzigomyces is proposed for P. flagellatus after examination of ex-type material. Sporidesmina is expanded to accommodate Stanjehughesia floridensis and a few other stanjehughesia-like fungi that cluster together in a distinct lineage incertae sedis in Xylariales. They are distant from St. hormiscioides, the type species in Chaetosphaeriales; therefore, five new combinations in Sporidesmina are proposed. Acrodictys holubovae, sp. nov. (Acrodictyaceae, Sordariomycetes incertae sedis), collected on dead culms of Arundinaria sp. (Poaceae), is phylogenetically distant from other Acrodictys species having clavate or pyriform conidia with 3–4 transverse septa and distinct pores. The identity of Solicorynespora foveolata is revised due to its similarity to several Distoseptispora species. The new combination D. foveolata is proposed, and the name D. bambusae is reduced to its synonym. The genus is also expanded to include previously overlooked tretic conidiogenesis. Pleopunctum ellipsoideum, D. euseptata, and D. meilingensis are newly recorded from North America. Novel phylogenetic placements are provided for Sporidesmium fragilissimum and Tubeufia berkeleyi.en© 2025 The Mycological Society of America. This is an electronic version of an article published in Mycologia, vol. , no. , pp. , 2025. doi : 10.1080/00275514.2025.2540233. Mycologia is available online at : http://www.tandfonline.com/loi/umyc20.Asexual AscomycotaTaxonomySystematicsNew taxaPostprint Article