Taxonomic studies on (Begoniaceae) in Myanmar I: three new species and supplementary description of from Northern Myanmar.

Three new species of (, and ) belonging to Begonia section Platycentrum and a supplementary description of with a detailed description of female flowers from Putao, Kachin State, Northern Myanmar, are described and illustrated. All the new species are endemic to Northern Myanmar and can be easily distinguished from other species among the section Platycentrum. A detailed description, photographs, habitat, distribution and a comparison with the most related allied species for all new species are provided.