Some species of the related genus Osmanthus are sometimes included here.[3]
Etymology
The name Nestegis is of unknown origin, since the author Constantine Samuel Rafinesque often invented generic names from scratch. It may have no meaning at all or it may derive from Greekstegos (στέγος) meaning "cover" in allusion to the lack of a corolla in the type species, Nestegis apetala.[4]
Nestegis ligustrina – privet mock olive (New South Wales, Tasmania and Victoria)[6][7] formerly included in this genus but the name now considered a synonym of Notelaea ligustrina Vent.[2]
^Shi-Quan Guo, Min Xiong, Chun-Feng Ji, Zhi-Rong Zhang, De-Zhu Li and Zhi-Yong Zhang, Molecular phylogenetic reconstruction of Osmanthus Lour. (Oleaceae) and related genera based on three chloroplast intergenic spacers, Plant Syst Evol (2011) 294:57–64