Polish Botanical Journal 58(1): 205–210, 2013 DOI: 10.2478/pbj-2013-0019 FIRST RECORD OF ISOPACHES DECOLORANS (MARCHANTIOPHYTA, LOPHOZIACEAE) FROM XIZANG, CHINA LI-NA ZHA N G , XIA-FA N G CHE N G & RUI -LIA N G ZHU Abstract. Isopaches decolorans (Limpr.) H. Buch, a rare, arctic and alpine species with remarkably disjunct distribution of the northern hemisphere, is found for the first time in Xizang (Tibet), China. In China it is a poorly known liverwort previously reported only from Sichuan and Yunnan. The colorful illustrations and detailed description of I. decolorans are provided, and SEM observation of elaters and spores is presented for the first time. Key words: Anastrophyllaceae, Isopaches, Lophoziaceae, Scapaniaceae, spore, Tibet Li-Na Zhang, Department of Biology, School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Department of Bioengineering, School of materials and Chemical Engineering, Hainan University, 58 Renmin Road, Haikou 570228, Hainan, China; e-mail:
[email protected] Xia-Fang Cheng, Department of Biology, School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; e-mail:
[email protected] Rui-Liang Zhu, Department of Biology, School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; e-mail:
[email protected] IN T R ODU C TIO N Isopaches H. Buch, an oligotypic genus, was es- was made by Long (2005 as Lophozia decolorans) tablished by Buch (1933). Schuster (1951) treated who found it in Deqin Co., North-west Yunnan. Isopaches as a subgenus of Lophozia (Dumort.) During recent expedition to China, Long (2011 Dumort., but molecular evidences in recent years as L.