Abstract— Irrespective of the fact that Borneo is one of the richest areas for mycoheterotrophic plants, only two species of the genus Lecanorchis Blume, a mycoheterotrophic genus of Orchidaceae, have been reported from Borneo. On three occasions during recent
botanical surveys in Betung Kerihun National Park, we found an undescribed species of Lecanorchis. Here, we provide a detailed morphological account of this new species, Lecanorchis betung-kerihunensis. We also provide a key to the species of Lecanorchis in Borneo.