genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
s in the
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Rubiaceae
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 ...
.Hooker, Joseph Dalton. 1873. Hooker's Icones Plantarum; or Figures, with brief Descriptive Characters and Remarks of New or Rare Plants 12: t. 1126 /ref> It is found in tropical Africa.
Hutch.
John Hutchinson, Officer of the Order of the British Empire, OBE, Fellow of the Royal Society, FRS (7 April 1884 Blindburn, Northumberland – 2 September 1972 London) was an English botanist, taxonomist and author.''A Botanist in Southern Afric ...
Hook.f.
Sir Joseph Dalton Hooker (30 June 1817 – 10 December 1911) was a British botanist and explorer in the 19th century. He was a founder of geographical botany and Charles Darwin's closest friend. For twenty years he served as director of ...