Incidental to the writer’s redaction of the Zygnematacean materials of China during the past two years, some new species and forms have been brought to light. It is also necessary to revise some older species and varieties. These materials were accumulated by the present author himself and his collaborators: Wei Yinxin, Zhong Heng, Zhao Xiongfei, Lee Yaoyin, Bi Liejiu, Chian Chengyu, Zhu Huizhong, Ling Yuanjie, Zheng Yingmin, Hu Hongjun, Zhu Wanjia, Liu Lian, Liang Jiaji, and Wang Yajan, who agreed to publish these materials (incl. 42 species and forms) in this paper collectively. The appropriate au- Incidental to the writer’s redaction of the Zygnematacean materials of China during the past two years, some new species and forms have been brought to light. It is also necessary to revise some older species and varieties. These materials were accumulated by the present author himself and his collaborators: Wei Yinxin, Zhong Heng, Zhao Xiongfei, Lee Yaoyin, Bi Liejiu, Chian Chengyu, Zhu Huizhong, Ling Yuanjie, Zheng Yingmin, Hu Hongjun, Zhu Wanjia, Liu Lian, Liang Jiaji, and Wang Yajan, who agreed to publish these materials (incl. 42 species and forms) in this paper collectively. The appropriate au-