Riedelia
Plantae | Zingiberaceae | Riedelia
Williamriedelia
Biota | Chromista | Heterokontophyta | Bacillariophytina | Bacillariophyceae | Coscinodiscophycidae | Biddulphianae | Hemiaulales | Hemiaulaceae | Williamriedelia
|  | Moestrup, R.A. Andersen & Guiry, 2023 | Medlin & Kaczmarska, 2004 | Haeckel, 1878 | Round & Crawford, 1990 |  | Round & Crawford, 1990 | Heiberg, 1863 | T.V. Desikachary & P. Prema in Prema & Desikachary, 2012