Genipa is a genus of trees in the family Rubiaceae. This genus is native to the American tropical forests.
Dudgeonea is a small genus of moths and the only genus of its family, the Dudgeoneidae. It includes six species distributed sparsely across the Old World from Africa and Madagascar to Australia and New Guinea.
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.
Antirhea is a genus of flowering plants in the family Rubiaceae.
Carphalea is a genus of flowering plants in the family Rubiaceae. It is endemic to Madagascar.
Vanguerieae is a tribe of flowering plants in the family Rubiaceae and contains about 655 species in 30 genera. It is one of the most species-rich groups within the family and it is distributed all over the Paleotropics.
Hedyotis (starviolet) is a genus of flowering plants in the family Rubiaceae. Many species of this genus such as Hedyotis biflora, H. corymbosa and H. diffusa are well known medicinal plants. Hedyotis is native to tropical and subtropical Asia and to islands of the northwest Pacific. It comprises about 115 species. The type species for the genus is Hedyotis fruticosa.
Kadua is a genus of flowering plants in the family Rubiaceae. It comprises 29 species, all restricted to Polynesia. Twenty-two of these are endemic to the Hawaiian Islands. Some of the species are common at high elevation. Others are single-island endemics or very rare, and a few are probably extinct. Kadua affinis is widely distributed in Hawaii and is polymorphic. The type species for the genus is Kadua acuminata.
Neoleroya was a monotypic genus of flowering plants in the family Rubiaceae but is no longer recognized. The genus contained only one species, i.e. Neoleroya verdcourtii, which is endemic to Madagascar. It was sunk into synonymy with Pyrostria.
Amphistemon is a genus of 2 species of flowering plants in the family Rubiaceae. It is described by Inge Groeninckx in 2010 based on a molecular analysis of the Hedyotis-Oldenlandia group. The genus name is based on the Greek 'amphi-' and 'stemon' (=stamen) referring to the dimorphic stamen position characteristic for this genus.
Arcytophyllum is a genus of flowering plants in the family Rubiaceae. The genus contains 18 species, distributed from New Mexico to Bolivia.
Razafimandimbisonia is a genus of flowering plants in the family Rubiaceae. It is endemic to Madagascar.
Nematostylis is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, i.e. Nematostylis anthophylla, which is endemic to Madagascar.
Chapelieria is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Chapelieria madagascariensis, which is endemic to Madagascar.
Thamnoldenlandia is a genus of plants in the Rubiaceae. It contains only one known species, Thamnoldenlandia ambovombensis, endemic to Madagascar.
Janotia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Janotia macrostipula, which is endemic to Madagascar.
Gallienia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Gallienia sclerophylla, which is endemic to Madagascar.
Gomphocalyx is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Gomphocalyx herniarioides, which is endemic to Madagascar.
Mitrasacmopsis is a genus of flowering plants belonging to the family Rubiaceae.
