Mollinedia myriantha Perkins (Monimiaceae) is a tropical tree described by Perkins (1900) based on a collection of the French botanist Auguste F. M. Glaziou collected in 1892 in the mountainous region of Rio de Janeiro state, Brazil. The species was rediscovered in 2015 after 123 years from Glaziou's report in the type locality, however, in subsequent eldworks (2018-2019) the sole rediscovered individual was found dead. In this study, we report this rediscovery and discuss the possible pressures that lead the individual to death, also we provide a lectotypi cation, along with morphological description, geographic distribution map and conservation comments for this species. Besides we discuss the conservation status of Monimiaceae in Brazil.