Paralysimachia F. Du, J. Wang et S. S. Yang, a new genus of Primulaceae from Yunnan

A new genus of Paralysimachia F. Du, J. Wang et S. S. Yang of Primulaceae has been identified in Bangdong Snow Mountain, Lincang city, Yunnan. It is similar to Lysimachia, but with a single perianth, without corolla, filament much longer than that of perianth, basal placentation instead of freecentral placentation, ovules less than 8. The typus of the new genus has been identified and illustrated as Paralysimachia xueshanensis F. Du, J. Wang et S. Y. Yang, and it is distributing in the alt. of 3390-3420m in the subalpinal steppes at the top of Bangdong Snow Mountain.