Exostema
Genus of flowering plants
From Wikipedia, the free encyclopedia
Exostema is a genus of flowering plants in the family Rubiaceae. It consists of trees and shrubs, endemic to the neotropics, with most of the species occurring in the West Indies.[1][2]
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| Exostema | |
|---|---|
| |
| Illustration of Exostemma caribaeum | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Rubiaceae |
| Subfamily: | Cinchonoideae |
| Tribe: | Chiococceae |
| Genus: | Exostema (Pers.) Bonpl. |
| Type species | |
| Exostema caribaeum | |
| Synonyms | |
Description
Systematics
The type species for the genus is Exostema caribaeum.[4] It is a tree of Central America and the Caribbean. Its lumber is of limited use.[1]
Exostema was first named by Christiaan Hendrik Persoon as a subgenus of Cinchona.[5] It was first validly published as a genus by Aimé Bonpland in 1807.[6][7] The generic name is derived from the Ancient Greek words, exo, meaning "outside", and stema, "stamen".[8]
As circumscribed in 2010, Exostema was probably polyphyletic.[9] Species have since been moved to other genera.
Species
As of March 2023[update], Plants of the World Online accepted the following species:[10]
- Exostema acuminatum Urb.
- Exostema bicolor Poepp.
- Exostema caribaeum (Jacq.) Schult.
- Exostema coriaceum (Poir.) Schult.
- Exostema glaberrimum Borhidi & M.Fernández
- Exostema lancifolium Borhidi & Acuña
- Exostema nitens Urb.
- Exostema purpureum Griseb.
- Exostema revolutum Borhidi & M.Fernández
- Exostema salicifolium Griseb.
- Exostema spinosum (Le Vavass.) Krug & Urb.