Begonia cangyuanensis, a new species of Begonia sect. Stolonifera Begoniaceae from Yunnan, China, is described and illustrated. Morphologically, it is similar to B. dioica in its tuberous habit with red stolons between tubers. However, it significantly differs in having two bracteoles under the ovary and four tepals of the female flower. A detailed description, photographs, and a comparison with allied species are provided.

Zingiber calcicola Y.H.Tan & H.B.Ding, sp. nov. (Zingiberaceae) from a limestone area in south Yunnan, China is described and illustrated here. It belongs to Zingiber sect. Dymczewiczia due to the terminal inflorescence on the leafy shoot. The description, photographs, habitat, distribution, phenology and a comparison with the allied species are also provided.