A new species of Sinningia Nees (Gesneriaceae) occurring in Rio de Janeiro and southern Espírito Santo is described and illustrated. It is morphologically related to Sinningia aghensis Chautems, through its large purple funnel-shaped corollas, but differs by the presence of 4–6 leaf pairs with much longer internodes, tomentose indument on stem and abaxial face of leaf blades, leaf blades wide ovate, peduncle pubescent and larger corolla. Geographic ranges of the two species do not overlap. Comments on phylogenetic relationships within subtribe Ligeriinae, a distribution map and a preliminary conservation assessment following IUCN Red List are also provided.
(Named Sinningia bragae)