| Joannesia | |
|---|---|
| | |
| Joannesia princeps | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Euphorbiaceae |
| Subfamily: | Crotonoideae |
| Tribe: | Jatropheae |
| Genus: | Joannesia Vell. 1798 not Pers. 1807 (Asteraceae) |
| Synonyms [1] | |
| |
Joannesia is a genus of plants in the family Euphorbiaceae, first described as a genus in 1798. [2] [3] The entire genus is endemic to Brazil. [1] [4]
Joannesia is a taxonomic patronym honoring the king John VI of Portugal. [5]
The name Joannesia yielded a taxonomic anagram for the confamilial genus Annesijoa . [5]
In 1807, Persoon used the same name, Joannesia, to a very different plant. [6] He thus created an illegitimate homonym, contrary to the rules of nomenclature. So the one species name that he had created in this illegitimate genus had to be renamed, as follows: [7]
{{cite web}}: CS1 maint: archived copy as title (link). Jardim Botânico do Rio de Janeiro, Rio de Janeiro