''Chonocentrum'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Phyllanthaceae Phyllanthaceae is a family of flowering plants in the eudicot order Malpighiales. It is most closely related to the family Picrodendraceae.Kenneth J. Wurdack and Charles C. Davis. 2009. "Malpighiales phylogenetics: Gaining ground on one of the ...

described as a genus in 1922. It contains only known species, ''Chonocentrum cyathophorum'', native to the State of Amazonas in northwestern

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 ...

.Kew World Checklist of Selected Plant Families
/ref> The genus is still not well understood; W. John Hayden has observed that the plant seems have been collected just once, in upper Rio Negro of

in the 1850s, and suggests that it has been misplaced taxonomically.Hayden, W. J., & S. M. Hayden. 2000. Relationships of ''Chonocentrum'' (Euphorbiaceae). Virginia Academy of Science Meeting, Radford University, Radford, VA. Virginia Journal of Science 51: 95.

References

Phyllanthaceae Monotypic Malpighiales genera Flora of Brazil Phyllanthaceae genera {{Phyllanthaceae-stub