You Qingmin (Orcid ID: 0000-0002-5538-8503) A new species of Achnanthes (Bacillariophyceae) from a freshwater habitat in a karst landform from south-central China Qingmin You 1 , Yu Pan 1 , John P. Kociolek 2,3,4 , Yanlu Wang 1 , Fen Luo 1 , Rex Lowe 4,5 and Quanxi Wang 1* 1 College of Life Sciences, Shanghai Normal University, Shanghai, China, 2 Museum of Natural History, University of Colorado, Boulder, CO, USA, 3 Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA, 4 University of Michigan Biological Station, Pellston, MI, USA, 5 Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, USA *Corresponding author. (E-mail: wangqx@shnu.edu.cn) Communicating Editor: Hidekazu Suzuki This article is protected by copyright. All rights reserved. This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/pre.12381