Distoseptispora bambusae sp. nov. (Distoseptisporaceae) on bamboo from China and Thailand Author Sun, Yaru Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China & Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand https://orcid.org/0000-0001-5549-1028 Author Goonasekara, Ishani D. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand Author Thambugala, Kasun M. Genetics and Molecular Biology Unit, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegoda, Sri Lanka Author Jayawardena, Ruvishika S. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand https://orcid.org/0000-0001-7702-4885 Author Wang, Yong Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, China yongwangbis@aliyun.com Author Hyde, Kevin D. Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, Thailand & Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou, China text Biodiversity Data Journal 2020 8 53678 53678 http://dx.doi.org/10.3897/BDJ.8.e53678 journal article http://dx.doi.org/10.3897/BDJ.8.e53678 1314-2828-8-e53678 8EE857CC6126584B8FD4BF7B26A75356 Distoseptispora tectonae Doilom & K.D. Hyde Fungal Diversity 81: 222 (2016) Materials Type status: Other material . Occurrence: catalogNumber: MFLU 20-0262 ; Taxon: scientificName: Distoseptisporatectonae; class: Sordariomycetes; order: Distoseptisporales; family: Distoseptisporaceae; Location: country: Thailand ; stateProvince: Chiangrai; locality: Mae Fah Luang University, Botanical Garden ; verbatimElevation: 390 m Description Saprobic on stems of dead wood. Sexual morph : Unknown. Asexual morph : Hyphomycetous (Fig. 3 ). Colonies effuse, brown to dark brown, hairy. Mycelium mostly immersed, composed of brown, septate, branched hyphae. Conidiophores macronematous, mononematous, septate, single or in groups of two, straight or slightly flexuous, cylindrical, dark brown, 34-95 x 5-8 μm (x̅ = 61.5 x 6 μm , n = 15). Conidiogenous cells integrated, terminal, monoblastic, cylindrical, brown. Conidia acrogenous, solitary, straight or slightly flexuous, rostrate, 11-23-distoseptate, differently constricted at the septa, thick-walled, truncate at the base, tapering towards apex, brown at the base, pale brown at the apex, 89-176 μm long (x̅ = 121 μm , n = 25), 12-19 μm at the widest (x̅ = 15 μm , n = 25). Culture characteristics : Conidia germinated on PDA within 12 hours and germ tubes were produced from both ends. On PDA, colony circular, reaching 40 mm diam after 4 weeks at 26℃, brown from above, dark brown from below, surface flat and slightly rough, edge entire. Notes Distoseptispora tectonae was introduced by Hyde et al. (2016) , from a terrestrial habitat in Thailand. Distoseptispora tectonae has macronematous, cylindrical, septate conidiophores, monoblastic, integrated, terminal, cylindrical conidiogenous cells and obclavate, straight or slightly curved, septate, smooth conidia. Our collection was also from Thailand. The morphological characters of our collection are the same as in the holotype, except that our isolate has longer and wider conidiophores (34-95 x 5-8 μm vs. up to 40 x 4-6 μm ) and less septa (11-23 vs. 20-28), compared to those of D. tectonae MFLUCC 12-0291. In this study, we also provide new sequences for D. tectonae .