Ridl. 1896 - Ridley H (1896) The Orchideae and Apostasiaceae of the Malay Peninsula. Journal of the Linnean Society of London, Botany 32(220-227): 213-416. doi: 10.1111/j.1095-8339.1896.tb00698.x.
There is no corrections for Rhynchostylis gigantea yet.