J.C.Manning & Goldblatt 1999 - Goldblatt P (1999) New species of Sparaxis and Ixia (Iridaceae: Ixioideae) from Western Cape, South Africa, and taxonomic notes on Ixia and Gladiolus. Bothalia 29: 59-63. doi: 10.4102/abc.v29i1.571.
There is no corrections for Ixia aurea yet.