According to the ongoing treatment of the Rubiaceae for the Flora of the Guianas, this family is represented in the region (Guyana, Suriname, French Guiana) by about 80 genera and 470 species. In the Guayana Shield, the Rubiaceae is the third most diversified family, with about 750 species (after the Leguminosae, with 1032 species, and the Orchidaceae, with 1020 species). In addition, it is found
... [Show full abstract] in practically all habits (herbs, shrubs, treelets, trees, lianas) and habitats (forests, savannas, tepuis, etc.), and is an important floristic component, both in terms of diversity and frequency. A preliminary assessment is made, in order to compare the local floristic composition with those of surrounding regions (northern South America, Amazon Basin, Central America, Antilles).