The Anubiadeae are a tribe

Tribe (biology)

In biology, a tribe is a taxonomic rank between family and genus. It is sometimes subdivided into subtribes.Some examples include the tribes: Canini, Acalypheae, Hominini, Bombini, and Antidesmeae.-See also:* Biological classification* Rank...

 of the family Araceae

Araceae

Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe or leaf-like bract. Also known as the Arum family, members are often colloquially...

, subfamily Aroideae

Aroideae

Aroideae is a subfamily of flowering plants in the Araceae family. It is the largest subfamily in Araceae and consists of about 72 different genera. Plants in Aroideae are characteristic of having spiny pollen without a sporopollenin outer exine layer and an aperature.-References:*Bown, Deni ....

. The tribe was first described in 1879 by Adolf Engler

Adolf Engler

Heinrich Gustav Adolf Engler was a German botanist. He is notable for his work on plant taxonomy and phytogeography, like Die Natürlichen Pflanzenfamilien , edited with Karl A. E...

 and contained only the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Anubias

Anubias

Anubias is a genus of aquatic and semi-aquatic flowering plants in the family Araceae, native to tropical central and western Africa. They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves that come in many different forms....

Schott. In 1915, Engler added the genus Amauriella Rendle. The two genera were distinguished by the position of the theca

Theca

A theca refers to any case, covering, or sheath.In botany, the theca of an angiosperm consists a pair of microsporangia that are adjacent to each other and share a common area of dehiscence called the stomium. Any part of a microsporophyll that bears microsporangia is called an anther. Most...

e on the synandria (fused anthers). The latest taxonomic revision

Biological classification

Biological classification, or scientific classification in biology, is a method to group and categorize organisms by biological type, such as genus or species. Biological classification is part of scientific taxonomy....

 regards Amauriella as a synonym of Anubias, leaving this a monogeneric tribe. The Anubiadeae are aquatic and semi-aquatic plants and are native to tropical central and western Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

. They primarily grow in rivers and streams, but can also be found in marshes.