Since Burtt’s 1978 monograph on the genus, which described 32 species from Malesia, a further three species have been described from Peninsular Malaysia (Weber, 1998). There are undoubtedly more species to be discovered in remote parts of the region. Monophyllaea burttiana Kiew (described below) is the second species to be recorded from Sabah.
A new species of Monophyllaea (Gesneriaceae) from Borneo
Publication: Gardens' Bulletin Singapore