M. Martínez-Azorín, “Massonia dentata (Asparagaceae, Scilloideae), a new species from the Nuweveldberge, and typification of the Sneeuberg endemic M. calvata (southern Great Escarpment, South Africa)”, Phytotaxa, vol. 175, no. 4, pp. 201–215, Aug. 2014.