Microula pentagona sp. nov. and M. galactantha sp. nov. (Boraginaceae) from the eastern Qinghai‐Tibetan Plateau

Microula pentagona W. T. Yu, S. T. Chen & Z. K. Zhou sp. nov. and M. galactantha W. T. Yu, S. T. Chen & Z. K. Zhou sp. nov. (Boraginaceae) from the eastern Qinghai‐Tibetan Plateau are described and illustrated. Microula pentagona is characterized by the pentagonal dark purple pubescent corolla throat, whereas M. galactantha is distinct by its white flowers and a nutlet attachment near the apex. The diagnostic features of the two new species are compared with other species of the genus.