''Gleasonia'' is a genus of plants in the

Rubiaceae The Rubiaceae are a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules ...

. There are at the present time (May 2014) five accepted species, all native to

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

.Kew World Checklist of Selected Plant Families
/ref> *''

Gleasonia cururuensis ''Gleasonia'' is a genus of plants in the Rubiaceae. There are at the present time (May 2014) five accepted species, all native to South America. *'' Gleasonia cururuensis'' Egler - Brazil *'' Gleasonia duidana'' Standl. - Brazil, Venezuela, Guya ...

'' Egler -

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

*''

Gleasonia duidana ''Gleasonia'' is a genus of plants in the Rubiaceae. There are at the present time (May 2014) five accepted species, all native to South America. *''Gleasonia cururuensis'' Egler - Brazil *'' Gleasonia duidana'' Standl. - Brazil, Venezuela, Guyan ...

'' Standl. -

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the ...

**''Gleasonia duidana'' var. ''duidana'' -

**''Gleasonia duidana'' var. ''latifolia'' Steyerm. -

*'' Gleasonia macrocalyx'' Ducke -

*'' Gleasonia prancei'' B.M.Boom -

*'' Gleasonia uaupensis'' Ducke -

References

Rubiaceae genera Henriquezieae {{Ixoroideae-stub