| Isertia | |
|---|---|
 | |
| Isertia haenkeana | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Rubiaceae |
| Subfamily: | Cinchonoideae |
| Tribe: | Isertieae |
| Genus: | Isertia Schreb. |
| Type species | |
| Isertia coccinea | |
| Synonyms | |
Isertia is a genus of flowering plants in the family Rubiaceae. It contains 15 species of shrubs or small trees that are indigenous to the neotropics. [1] A few are cultivated as ornamentals. [2]
Isertia was named by Johann von Schreber in 1789. [3] The generic name honors the German botanist and explorer Paul Erdmann Isert. [4]
Isertia is divided into two sections: section Cassupa and section Isertia. In section Cassupa, the fruit is a berry and the ovary usually has two or three locules. In section Isertia, the fruit is a pyrene and the ovary usually has five or six locules. [5]
Molecular phylogenetic studies have shown that Isertia is most closely related to Kerianthera , a monospecific genus from Amazonian Brazil. [6]
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 and sympetalous actinomorphic flowers. The family contains about 13,500 species in about 620 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution; however, the largest species diversity is concentrated in the tropics and subtropics. Economically important species include Coffea, the source of coffee, Cinchona, the source of the antimalarial alkaloid quinine, some dye plants, and ornamental cultivars.
Uncaria is a genus of flowering plants in the family Rubiaceae. It has about 40 species. Their distribution is pantropical, with most species native to tropical Asia, three from Africa and the Mediterranean and two from the neotropics. They are known colloquially as gambier, cat's claw or uña de gato. The latter two names are shared with several other plants. The type species for the genus is Uncaria guianensis.
Cephalanthus is a genus of flowering plants in the family Rubiaceae. There are about six species that are commonly known as buttonbush.
Oldenlandia is a genus of flowering plants in the family Rubiaceae. It is pantropical in distribution and has about 240 species. The type species for the genus is Oldenlandia corymbosa.
Arachnothryx is a genus of flowering plants in the family Rubiaceae. It contains about 107 species. It is found from Mexico to Peru and in Trinidad.
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.
Lasianthus is a genus of flowering plants in the family Rubiaceae. They are tropical subshrubs, shrubs, or rarely, small trees. They inhabit the understory of primary forests. None of them are known to have any use.
Psydrax is a genus of flowering plants in the family Rubiaceae. It consists of trees, shrubs, and a few lianas in the paleotropics.
Remijia is a genus of flowering plants in the family Rubiaceae. Within the family, it is a member of the subfamily Cinchonoideae and the tribe Cinchoneae.
Chiococca is a genus of flowering plants in the family Rubiaceae. It currently holds 23 species that are native to Florida, Texas, Mexico, Central America, much of South America, the West Indies, and the Galápagos.
Poranthereae is a tribe in the flowering plant family Phyllanthaceae. It is one of ten tribes in the family, and one of four tribes in the subfamily Phyllanthoideae. Poranthereae comprises about 111 species, distributed into eight genera. The largest genera and the number of species in each are Actephila (31), Meineckia (30), and Andrachne (22).
Chione is a monotypic genus of flowering plants in the family Rubiaceae containing the single species Chione venosa. It is native to the neotropics, occurring in most of Mexico, and throughout Central America, the Caribbean, Colombia, Ecuador, and Peru. It is typically a tree growing 10 to 20 meters tall. In harsh habitats, it may be dwarfed and shrubby. It has no known economic use.
Adina is a genus of 11 species of flowering plants in the family Rubiaceae. They are shrubs or small trees, native to East Asia and Southeast Asia.
Neonauclea is a genus of flowering plants in the family Rubiaceae. It comprises about 71 species. Neonauclea is a genus of shrubs and trees They are indigenous to China, India, Southeast Asia, Wallacea, New Guinea and Australia.
Alibertia is a genus of flowering plants in the family Rubiaceae. It is found in tropical America. They are dioecious trees or shrubs, with white flowers and indehiscent, often fleshy fruit.
Arcytophyllum is a genus of flowering plants in the family Rubiaceae. The genus contains 18 species, distributed from New Mexico to Bolivia.
Retiniphyllum is a genus of flowering plants in the family Rubiaceae and contains 20 species. It is the only genus in the tribe Retiniphylleae. The representatives are shrubs or small trees that grow in white sand soils in tropical South America. They are mainly distributed in the Guayana Region (Venezuela) but also occur in the Amazon Basin, the eastern Andes and central and eastern Brasil.
Hamelieae is a tribe of flowering plants in the family Rubiaceae and contains about 171 species in 6 genera. Its representatives are found in tropical and subtropical America. The sister tribe Hillieae is sometimes here included.
Isertieae is a tribe of flowering plants in the family Rubiaceae and contains about 16 species in 2 genera. Its representatives are found in tropical America.
Sphinctanthus is a genus of flowering plants in the family Rubiaceae, native to tropical South America. It is in a clade with Rosenbergiodendron and Tocoyena.