Key points are not available for this paper at this time.
Microula sensu lalo (Boraginaceae-Eritrichieae) is a genus with about twelve species mainly occurring at high altitudes in the Himalayas, Tibet and Western China. Four species are described here from India and Sikkim including M. duthei which is a new species from Sikkim added by the senior author.
Banerjee et al. (Mon,) studied this question.