Crouch, N. R., Klopper, R. R., & McNeill, J. (2014). Consideration of a recommendation to co-publish optional combinations in alternative classifications of the Ornithogaleae (Scilloideae, Asparagaceae). Phytotaxa, 178(2), 159–160. https://doi.org/10.11646/phytotaxa.178.2.9