Echites is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1756. It is primarily native to Mexico, Central America, the West Indies, and the US State of Florida.
(Wikipedia)
Fernaldia is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1932. It is native to Mexico and Central America.
(Wikipedia)