Restoration of the Specific Status of Caltha rubriflora and a New Ally

The specific status of Caltha rubriflora Burtt & Lauener, previously reduced to the synonymy of C. palustris L. var. purpurea Spare & C. E. C. Fisch. or relegated to form status under C. sinogracilis W. T. Wang, is restored. In addition, C. lobulatifolia W. T. Wang, a new ally of C. rubriflora, is described from southeastern Tibet, and the diagnostic differences between them are given.