本文描述的产于越南的毛茛科Ranunculaceae铁线莲属Clematis一新种C. hagiangensis N. T. Do是欧亚大陆第一个具单性花的种, 在花......

In this paper Clematis sect. Aspidanthera s. 1. is revised. Seventy-two species and 15 varieties are recognized. They ar......