
Villadia

Villadia is a genus of plants in the family Crassulaceae. It includes about 25 to 30 species distributed from Texas to Peru.
Synonyms.
"Altamiranoa" was a genus of the Crassulaceae, that Joseph Nelson Rose proposed in the early 1900s for 12 Mexican species, three described as new and nine formerly in "Cotyledon", "Sedum", or "Umbilicus". The name was dedicated to Fernando Altamirano, a Mexican physician, botanist and naturalist that co-worked with J. N. Rose.
Baehni (1937) united the genus "Altamiranoa" with "Villadia", but Walther (1938) refuted the argument and proposed the combined genus be called species of "Altamiranoa" are best dispersed in "Sedum" genus, but maintained the differences with genus "Villadia".
Species listed under "Altamiranoa" include: