Cryptocarpus Kunth is a small, monotypic genus of flowering plants in the four o'clock family, Nyctaginaceae, within the order Caryophyllales. It contains a single accepted species, Cryptocarpus pyriformis, commonly known as saltbush or monte salado. The genus was published by the German botanist Carl Sigismund Kunth in 1817, in Nova Genera et Species Plantarum.
Cryptocarpus pyriformis is a sprawling, halophytic shrub associated with coastal and saline habitats, consistent with its common names "saltbush" and "monte salado" (Spanish for "salty scrubland"). It is most closely associated with the Galápagos Islands, where it forms part of the characteristic coastal vegetation, and also occurs on the adjacent South American mainland. Sources differ somewhat on the full extent of its native range: Wikipedia lists the Galápagos Islands, mainland Ecuador, and Peru, while the World Checklist of Vascular Plants (via GBIF) extends this range further to include Bolivia and southwestern Mexico.
As a monotypic genus, Cryptocarpus is taxonomically notable chiefly for containing this single species; no additional accepted species have been described within the genus.
Distribution
Native to the Galápagos Islands and mainland Ecuador and Peru (Wikipedia); the World Checklist of Vascular Plants extends the range to also include Bolivia and southwestern Mexico.
Taxonomy Notes
Cryptocarpus Kunth (Nyctaginaceae, Caryophyllales) is monotypic, published in 1817; its only accepted species is Cryptocarpus pyriformis, per both the GBIF Backbone Taxonomy and Wikipedia.
