1. State Key Laboratory of Mycology Institute of Microbiology Chinese Academy of Sciences Beijing 100101 China
2. College of Life Sciences University of Chinese Academy of Sciences Beijing 100049 China
3. Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China
4. Department of Biology Stanford University Stanford CA 94305 USA
5. Key Laboratory for Humid Subtropical Eco‐geographical Processes of the Ministry of Education Fujian Normal University Fuzhou 350007 China
6. Faculty of Biological Science and Technology Baotou Teacher’s College Baotou Inner Mongolia 014030 China
7. Department of Plant and Microbial Biology University of California‐Berkeley Berkeley CA 94720‐3102 USA