Joannesia
Genus of flowering plants in the spurge family
From Wikipedia, the free encyclopedia
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 | |
|---|---|
| |
| Joannesia princeps | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| 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] | |
| |
Etymology
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]
Systematics
- Species[1]
- Joannesia heveoides Ducke – Amazonas State in Brazil
- Joannesia princeps Vell. – eastern Brazil (Distrito Federal, Espírito Santo, Minas Gerais, Rio de Janeiro)
- Species in homonymic genus
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]
- Joannesia insignis Pers. – Chuquiraga jussieui J.F.Gmel.[8]
