''Afrocanthium'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Rubiaceae Rubiaceae () is a family (biology), 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 Petiole ( ...

. It consists of

deciduous In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ...

, unarmed

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...

s, and

shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...

s. They are

native Native may refer to: People * '' Jus sanguinis'', nationality by blood * '' Jus soli'', nationality by location of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Nat ...

East Africa East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the regi ...

, from

Sudan Sudan, officially the Republic of the Sudan, is a country in Northeast Africa. It borders the Central African Republic to the southwest, Chad to the west, Libya to the northwest, Egypt to the north, the Red Sea to the east, Eritrea and Ethiopi ...

and

Ethiopia Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a landlocked country located in the Horn of Africa region of East Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east, Ken ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...

Taxonomy

''Afrocanthium'' was first recognized as a distinct group in 1991, when it was named as a

subgenus In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the ge ...

of '' Canthium''. It was described and compared to the other subgenera in 1992. In 2004, a

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

study of

DNA sequence A nucleic acid sequence is a succession of bases within the nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule. This succession is denoted by a series of a set of five different letters that indicate the order of the nu ...

s showed that ''Afrocanthium'' is

monophyletic In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent co ...

and not most closely related to the other subgenera of ''Canthium''. The authors of this study raised ''Afrocanthium'', unaltered, to generic

status Status (Latin plural: ''statūs''), is a state, condition, or situation, and may refer to: * Status (law) ** Legal status, in law ** Political status, in international law ** Small entity status, in patent law ** Status conference ** Status c ...

. It is

sister A sister is a woman or a girl who shares parents or a parent with another individual; a female sibling. The male counterpart is a brother. Although the term typically refers to a familial relationship, it is sometimes used endearingly to ref ...

to '' Keetia'', a genus that was segregated from ''Canthium'' in 1986.

Species

* '' Afrocanthium burttii'' (

Bullock Bullock may refer to: Animals * Bullock (in British English), a castrated male cattle, bovine animal of any age * Bullock (in American English), a young bull (an uncastrated male bovine animal) * Bullock (in Australia, India and New Zealand), an o ...

)

Lantz __NOTOC__ Lantz may refer to: People * Lantz (surname), a surname of German and Swedish origin * Lantz (given name) Places Canada *Lantz, Nova Scotia Spain *Lantz, Spain, Navarre United States *Lantz, West Virginia *Lantz Arena in Charlesto ...

* '' Afrocanthium gilfillanii'' (

N.E.Br. Nicholas Edward Brown (11 July 1849 in Redhill, Surrey – 25 November 1934 in Kew Gardens, London) was an English plant taxonomist and authority on succulents. He was also an authority on several families of plants, including Asclepiadaceae, ...

) Lantz * '' Afrocanthium keniense'' (

)

* '' Afrocanthium kilifiense'' ( Bridson)

* '' Afrocanthium lactescens'' ( Hiern)

* '' Afrocanthium mundianum'' (

Cham. Adelbert von Chamisso (; 30 January 1781 – 21 August 1838) was a German poet, writer and botanist. He was commonly known in French as Adelbert de Chamisso (or Chamissot) de Boncourt, a name referring to the family estate at Boncourt. Life ...

Schltdl. Diederich Franz Leonhard von Schlechtendal (27 November 1794, Xanten – 12 October 1866, Halle an der Saale, Halle) was a German botanist. Life and work Von Schlechtendal was born in Xanten, Xanten am Rhein and when his father Diederich Fried ...

)

* '' Afrocanthium ngonii'' ( Bridson)

* '' Afrocanthium parasiebenlistii'' ( Bridson)

* '' Afrocanthium peteri'' ( Bridson)

* '' Afrocanthium pseudorandii'' ( Bridson)

* '' Afrocanthium pseudoverticillatum'' ( S.Moore)

* '' Afrocanthium racemulosum'' ( S.Moore)

* '' Afrocanthium rondoense'' ( Bridson)

* '' Afrocanthium salubenii'' ( Bridson)

* '' Afrocanthium shabanii'' ( Bridson)

* '' Afrocanthium siebenlistii'' ( K.Krause)

* '' Afrocanthium vollesenii'' ( Bridson)

References

External links

''Afrocanthium'' in the World Checklist of Rubiaceae
{{Taxonbar, from=Q4690237 Rubiaceae genera Vanguerieae Taxa named by Birgitta Bremer Taxa named by Diane Mary Bridson