Galtonia is a bulbous genus in the Hyacinthaceae family from the eastern summer rainfall area of southern Africa. These are summer growers dormant in winter and best grown in deep moisture retentive soil. In J. Manning, P. Goldblatt & M.F. Fay, "A revised generic synopsis of Hyacinthaceae in sub-Saharan Africa, including new combinations and the new tribe Pseudoprospereae", Edinburgh Journal of Botany 60(3): 533-568 (2004) the authors propose sinking Galtonia along with Dipcadi, Albuca, Neopatersonia, and Pseudogaltonia into Ornithogalum. It is since been determined that Albuca, Dipcadi and Neopatersonia should be retained.
In a "A molecular phylogeny and a revised classification of Ornithogaloideae(Hyacinthaceae) based on an analysis of four plastid DNA regions" written by John C. Manning, Félix Forest, Dion S. Devey, Michael F. Fay & Peter Goldblatt in TAXON 58 (1), February 2009: 1-107, this subject was again addressed. Three clades were identified. Clade A is recognized as the genus Albuca. Clade B comprises the genera Dipcadi and Pseudogaltonia. Clade C is the genus Ornithogalum and includes Galtonia and Neopatersonia.
Since we think including this genus in Ornithogalum is now likely to be adopted by more and more sources, we are now including the information and photos of the Galtonia species on the Ornithogalum wiki pages.
Galtonia candicans (Baker) Decne., see Ornithogalum candicans (Baker) J.C.Manning & Goldblatt.
Galtonia regalis Hilliard & B.L.Burtt, see Ornithogalum regale (Hilliard & B.L.Burtt) J.C.Manning & Goldblatt.
Galtonia viridiflora I.Verd., see Ornithogalum viridiflorum (I.Verd.) J.C.Manning & Goldblatt.
Related genera can be found on the following wiki pages:
Albuca - Dipcadi - Neopatersonia - Ornithogalum - Pseudogaltonia - Southern African Ornithogalum A-O - Southern African Ornithogalum P-Z