Yunnan-Guizhou Plateau: a mycological hotspot Author Wijayawardene, Nalin N. Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, P. R. China & State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China & Section of Genetics, Institute for Research and Development in Health and Social Care No: 393 / 3, Lily Avenue, Off Robert Gunawardane Mawatha, Battaramulla 10120, Sri Lanka Author Dissanayake, Lakmali S. The Engineering Research Center of Southwest Bio-Pharmaceutical Resources Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, China Author Li, Qi-Rui State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China & The Key Lab of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou 550025, P. R. China Author Dai, Dong-Qi Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, P. R. China Author Xiao, Yuanpin Institute of Excellence in Fungal Research, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand & State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China Author Wen, Ting-Chi The Engineering Research Center of Southwest Bio-Pharmaceutical Resources Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, China & State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China & The Mushroom Research Centre, Guizhou University, Guiyang 550025, China Author Karunarathna, Samantha C. Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P. R. China & CIFOR-ICRAF, World Agroforestry Centre, Kunming 650201, Yunnan, P. R. China & Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming, Yunnan, 650201, P. R. China Author Wu, Hai-Xia International Fungal Research and Development Centre, The Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, PR China Author Zhang, Huang Faculty of Agriculture and Food, Kunming University of Science & Technology, Kunming 650500, People’s Republic of China Author Tibpromma, Saowaluck Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P. R. China & CIFOR-ICRAF, World Agroforestry Centre, Kunming 650201, Yunnan, P. R. China & Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming, Yunnan, 650201, P. R. China Author Kang, Ji-Chuan The Engineering Research Center of Southwest Bio-Pharmaceutical Resources Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, China Author Wang, Yong Department of Plant Pathology, Agriculture College, Guizhou University, Guiyang 550025, P. R. China Author Shen, Xiang- Chun State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, P. R. China & The Key Lab of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou 550025, P. R. China Author Tang, Li-Zhou Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, P. R. China Author Deng, Chun-Ying Guizhou institute of biology, Guizhou academy of science, Guiyang, 550009, P. R. China Author Liu, Yanxia Author Kang, Yingqian text Phytotaxa 2021 2021-10-15 523 1 1 31 journal article 3999 10.11646/phytotaxa.523.1.1 9d936674-3dce-4fd9-8f2b-7cd216b19b75 1179-3163 5571977 Helminthosporium velutinum Link [as ‘Helmisporium’], Mag. Gesell. naturf. Freunde, Berlin 3(1–2): 10, tab. 1:9 (1809) ( FIGURE 4 ) Index Fungorum Number : IF250075 FIGURE . Helminthosporium velutinum ( HKAS 107064 , new host record and a new record from Guizhou Province ) a–c. Colony on the substrate. d. Conidiophores. e–g. Conidiophore and conidia. h–l. Conidia. m. Germinating conidium. n, o. Culture on PDA from. n. above o. below after 4 weeks. Scale bars: d = 100 μm, e–g =50 μm, h–m = 20 μm. Description . Saprobic on dead twigs, dark brown, effuse, velvety. Sexual morph : Undetermined. Asexual morph : Mycelium immersed, composed of branched, septate, thick-walled hyphae. Conidiophores mononematous, macronematous, mostly unbranched, proliferating, dark brown, 96–296 × 5–7 µm (x̅ = 153 × 6 µm, n = 10), 7–12 septate, erect or flexuous, tapering towards apex, bulbous at base with cells near apex of conidiophore guttulate and fertile. Conidiogenous cells polytretic integrated, intercalary and terminal. Conidia 99–131 × 20–36 µm (x̅ = 115 × 28 µm, n = 20)single, obclavate, pale brown to brown, 6–9 distoseptate, smooth, straight or curved, base slightly truncate, cicatrized and wider than apex, dark brown, apical cell paler than other cells, rounded at apex, guttulate when young, non-guttulate at maturity. Culture characteristics: Colonies on PDA, reaching 21 mm diam., after 2 weeks at 20–25 oC , medium dense, circular to slightly irregular, slightly raised and cottony surface, colony from above: at first white, becoming buff; from below: blackish white at the margin, black to ash at the center; mycelium blackish. Material examined: CHINA , Guizhou Province , Huaxi District , Guizhou university garden ( South ), on a dead branch of Platanus sp. , 05 October 2019 , Nalin N . Wijayawardene, NWGUP01 ( HKAS 107064 , new host record, a new record from Guizhou Province ), ex-type living culture, KUMCC 20–0029 Known hosts and distribution: Guizhou province , China (this study), Yunnan Province , Dali, WanHua stream, China ( Zhu et al. 2016 ). Known hosts: Platanus sp. (this study), saprobic on decaying wood submerged in stream ( Zhu et al. 2016 ). GenBank Numbers : LSU : MW273148 , SSU : MW273295 , ITS : MW 273144 Notes : Helminthosporium velutinum , the type species of Helminthosporium was re-visited by Voglmayr & Jaklitsch (2017) and designated the epitype and the ex-epitype. The genus was reported with the sexual morph however, Helminthosporium velutinum lacks the sexual morph ( Voglmayr & Jaklitsch 2017 ). According to Voglmayr & Jaklitsch (2017) , distribution of the species was reported as ‘Widespread and common in temperate Eurasia and America, probably almost cosmopolitan’. Zhu et al. (2016) reported Helminthosporium velutinum from submerged wood from Yunnan Province , China . In this study, we collected Helminthosporium velutinum on dead branches of Platanus sp. from Guizhou Province , China . According to Farr & Rossman (2021) , a taxon named Helminthosporium spiciferum ( Nicot 1953 ) (current name: Curvularia spicifera Index Fungorum 2021 ) was reported from Platanus occidentalis . Besides this record, as far as we know, Helminthosporium species have not been reported from Platanus species. Moreover, this is the first record of this genus from terrestrial habitats from China .