Bester, S. P., & Nicholas, A. (2016).

Schizoglossum austromontanum, a novel new species from South Africa (Apocynaceae, Asclepiadoideae, Asclepiadeae)

. Phytotaxa, 273(1), 43–50. https://doi.org/10.11646/phytotaxa.273.1.4