Phlebiopsis lacerata sp. nov. (Polyporales, Basidiomycota) from southern China Author Xu, Tai-Min 0000-0002-5230-4140 Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, P. R. China & College of Life Sciences, Southwest Forestry University, Kunming 650224, P. R. China fungitaiminx@163.com Author Zeng, Yuan-Fang 0000-0002-5921-5503 Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, P. R. China & College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P. R. China fungiyuanfang@163.com Author Cheng, Yu-Hui 0000-0003-4105-2934 College of Life Sciences, Southwest Forestry University, Kunming 650224, P. R. China cyh196107@126.com Author Zhao, Chang-Lin 0000-0002-8668-1075 Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, P. R. China & College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P. R. China & Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, P. R. China fungichanglinz@163.com text Phytotaxa 2020 2020-04-29 440 4 268 280 http://dx.doi.org/10.11646/phytotaxa.440.4.2 journal article 303945 10.11646/phytotaxa.440.4.2 194c3c85-441d-4e90-bf08-f9dc8b85d431 1179-3163 13872066 Phlebiopsis lacerata C.L. Zhao , sp. nov. ( Figs. 3 , 4 , 5 ) MycoBank no.: MB 834941 Type: CHINA , Yunnan Province , Puer, Jingdong County, Wuliangshan National Nature Reserve, on angiosperm fallen branch, 3 October 2017 , CLZhao 3692/ SWFC 3692 ( holotype , SWFC !). Etymology.— Lacerata (Lat.) : referring to the lacerate hymenophore. Basidiomata. —Annual, resupinate to effuse-reflexed, subceraceous when fresh, turning to leather upon drying, up to 15 cm long, 4 cm wide, 3 mm thick. Pilei often laterally fused. Pileal surface tomentose, buff to ochraceous when fresh and grey ochraceous upon drying. Pores poroid when juvenile in margin, 1–2 per mm, dissepiments thin, lacerated and splitting to spines or odontioid with age, white to cream when fresh, turning to cream to violaceous upon drying. Sterile margin distinct, white. Hyphal structure.— Hyphal system monomitic; generative hyphae simple septate, thick-walled, branched, 3–5.5 µm diam, IKI–, CB –; tissues unchanged in KOH. Hymenium. —Cystidia conical, thick-walled, apically encrusted with large and heavy crystal, 50–85 × 3–5.5 µm, cystidioles absent; basidia narrowly clavate, with four sterigmata and a simple septum, 18–26.5 × 3.5–5.5 µm; basidioles dominant, in shape similar to basidia, but slightly smaller. Spores. —Basidiospores ellipsoid, hyaline, thin-walled, smooth, IKI–, CB –, 4–5.5(–6) × (2.5)3–3.5 µm, L = 4.45 µm, W = 3.19 µm, Q =1.31–1.48 (n = 240/4). Associated wood-rot : White. Additional specimens examined.— CHINA , Yunnan Province , Puer, Jingdong County, Wuliangshan National Nature Reserve, on angiosperm fallen branch, 3 October 2017 , CLZhao 3705/ SWFC 3705, 3721/ SWFC 3721, 3747/ SWFC 3747 ( paratypes , SWFC !).