A new species of Zasmidium associated with sooty blotch and flyspeck Author Zhao, Wanyu State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China Author Hou, Yanmin State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China Author Bai, Jingke State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China Author Zhang, Wei State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China Author Gao, Liu State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China Author Zhang, Rong State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China Author Gleason, Mark L. Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa, United States of America Author Sun, Guangyu State Key Laboratory of Crop Stress Biology in Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi Province, China text Phytotaxa 2016 2016-04-28 258 2 190 194 http://dx.doi.org/10.11646/phytotaxa.258.2.9 journal article 10.11646/phytotaxa.258.2.9 1179-3163 13669590 Zasmidium litseae G.Y. Sun & Wanyu Zhao , sp. nov. ( Fig. 2 ) MycoBank MB 812971 Etymology— Named after its host genus. Mycelium consisting of septate, branched, 1.06–3.16 μm diam. hyphae. Conidiophores lateral on mycelium, solitary, erect, unbranched, straight to somewhat flexuous, subcylindrical, 27.36–59.45 × 2.03–3.09 μm, 0–5-septate. Conidiogenous cells integrated, terminal, subcylindrical, unbranched, but apex frequently swollen, straight or once geniculate, with one to several conidiogenous loci, proliferating sympodially. Conidia ellipsoidal, subcylindrical or fusiform, straight to somewhat flexuous, apex obtusely rounded, base truncate, 0–2-septate, 4.20–16.72 × 1.61–2.76 μm. FIGURE 1. The first one of the parsimonious trees (TL=529, CI=0.7259, RI=0.7452, RC=0.5409, HI=0.2741). 18 sequences were comprised by the alignment of ITS and LSU region. The tree was rooted to Teratosphaeria cryptica . Cultural characteristics— On PDA convex, margin entire, with moderate aerial mycelium, reaching 19 mm diam. after 2 weeks. Mycelial type— Discrete speck. Holotype — CHINA . Guangxi Province : Beihai City , 21°27’26”N , 109°3’37”E , on the petiole of Litsea glutinosa (Lour.) C.B. Rob, Oct. 2013 , Wanyu Zhao and Liu Gao, HMAS 246718 (=ZWY137) (dried culture), ex-type CGMCC3.17701 (=ZWY137). Notes— Zasmidium litseae clusters close to Z . syzygii phylogenetically, but they are distinct in morphology. Z. litseae has shorter conidiophores and conidia, and its conidia have fewer septa. The conidiogenous cells of Z . syzygii taper apically towards a rounded or flattened apex, whereas the conidiogenous cells of Z. litseae are often swollen and geniculate towards the apex.