The topology of the strict consensus tree shows that: 1. transferring the species with 3 locular ovaries from Sect. Sphenanthera to Sect. Begonia was supported;

• 结果表明 :1.；支持将原无翅组内子房 3室的种类移入秋海棠组；而将子房 4室的种保留；成立四室组 (Sect