Does Ixora or Mesquite have more species?
Mesquite Mesquite is the common name for the genus "Prosopis", containing over 40 species of small leguminous trees. They are native to the southwestern United States and Mexico (even the creeping mesquite, which is invasive in southern California).
Hexalectris revoluta Hexalectris revoluta (Chisos Mountain crested coralroot) is a terrestrial, myco-heterotrophic orchid lacking chlorophyll and subsisting entirely on nutrients obtained from mycorrhizal fungi in the soil. It is closely related to "H. colemanii"; the two are regarded by some authors as varieties of the same species. "Hexalectris revoluta" is native to western Texas, southeastern New Mexico and Chihuahua.