Razafimandimbisonia is a 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...

 of flowering plant

Flowering plant

The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...

s in the Rubiaceae

Rubiaceae

The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...

 family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

. It is endemic to Madagascar

Madagascar

The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...

.

Taxonomy

The genus Alberta

Alberta

Alberta is a province of Canada. It had an estimated population of 3.7 million in 2010 making it the most populous of Canada's three prairie provinces...

was shown to be paraphyletic in a phylogenetic analysis of the tribe Alberteae. The type species Alberta magna is set apart from the Malagasy Alberta

Alberta

Alberta is a province of Canada. It had an estimated population of 3.7 million in 2010 making it the most populous of Canada's three prairie provinces...

species. A new genus, Razafimandimbisonia, was proposed to accommodate these Malagasy species.

Latin diagnosis

Frutices vel arbores. Folia petiolata coriacea, venis plus minusve prominentibus. Inflorescentia determinata absque flore terminali, inflorescentiis partialibus cymis decussatis paucis paribus. Flores 5-meri plus minusve zygomorphi. Calyx lobis plus minusve aequalibus aut inaequalibus, ante anthesin totis expansis aut lobo uno petiolato expanso (R. sambiranensis). Corolla infundibularis plus minusve curva, lobis in alabastrio contortis. Stylus longi-exsertus. Stigma lobis brevibus rotundatis. Fructus in duo mericarpia dehiscens.

Species

• Razafimandimbisonia humblotii (Drake
  Emmanuel Drake del Castillo
  Emmanuel Drake del Castillo was a French botanist.He was born at Paris and studied with Louis Édouard Bureau at the Muséum national d'histoire naturelle...
  
  ) Kainul. & B.Bremer
• Razafimandimbisonia minor (Baill.
  Henri Ernest Baillon
  Henri Ernest Baillon was a French botanist and physician. He was born in Calais on November 30, 1827 and died in Paris on July 19, 1895.Baillon spent his professional life as a professor of natural history, and he published numerous works on botany...
  
  ) Kainul. & B.Bremer
• Razafimandimbisonia orientalis (Homolle ex Cavaco) Kainul. & B.Bremer
• Razafimandimbisonia regalis (Puff & Robbr.) Kainul. & B.Bremer
• Razafimandimbisonia sambiranensis (Homolle ex Cavaco) Kainul. & B.Bremer