Wittsteinia Wittsteinia F.v.M. in Fragm. Phytogr. Austr. 2: 136. 1861≡Periomphale BAILL. in Bull. Mens. Soc. Linn. Paris n. 92: 731. 1888≡Memecylanthus GILG & SCHLTR in Bot. Jahrb. 39: 269. 1906≡Pachydiscus GILG & SCHLTR in Bot. Jahrb. 39: 270. 1906
