Rubiaceae is a family of flowering plants (anthophytes) in the order Gentianales, 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 and sympetalous actinomorphic flowers. The family contains about 13,500 species in about 620 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution; however, the largest species diversity is concentrated in the tropics and subtropics.[1]

23,420 species of vascular plant have been recorded in South Africa, making it the sixth most species-rich country in the world and the most species-rich country on the African continent. Of these, 153 species are considered to be threatened.[2] Nine biomes have been described in South Africa: Fynbos, Succulent Karoo, desert, Nama Karoo, grassland, savanna, Albany thickets, the Indian Ocean coastal belt, and forests.[3]

The 2018 South African National Biodiversity Institute's National Biodiversity Assessment plant checklist lists 35,130 taxa in the phyla Anthocerotophyta (hornworts (6)), Anthophyta (flowering plants (33534)), Bryophyta (mosses (685)), Cycadophyta (cycads (42)), Lycopodiophyta (Lycophytes(45)), Marchantiophyta (liverworts (376)), Pinophyta (conifers (33)), and Pteridophyta (cryptogams (408)).[4]

65 genera are represented in the literature. Listed taxa include species, subspecies, varieties, and forms as recorded, some of which have subsequently been allocated to other taxa as synonyms, in which cases the accepted taxon is appended to the listing.[4] Multiple entries under alternative names reflect taxonomic revision over time.

Afrocanthium

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Genus Afrocanthium:[4]

Agathisanthemum

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Genus Agathisanthemum:[4]

Alberta

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Genus Alberta:[4]

Ancylanthos

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Genus Ancylanthos:[4]

Anthospermum

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Genus Anthospermum:[4]

Breonadia

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Genus Breonadia:[4]

Burchellia

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Genus Burchellia:[4]

Canthium

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Genus Canthium:[4]

Carpacoce

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Genus Carpacoce:[4]

Catunaregam

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Genus Catunaregam:[4]

Cephalanthus

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Genus Cephalanthus:[4]

Coddia

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Genus Coddia:[4]

Coffea

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Genus Coffea:[4]

Conostomium

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Genus Conostomium:[4]

Coprosma

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Genus Coprosma:[4]

Coptosperma

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Genus Coptosperma:[4]

Cordylostigma

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Genus Cordylostigma:[4]

Crocyllis

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Genus Crocyllis:[4]

Crossopteryx

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Genus Crossopteryx:[4]

Diodia

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Genus Diodia:[4]

Diplospora

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Genus Diplospora:[4]

Empogona

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Genus Empogona:[4]

Eriosemopsis

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Genus Eriosemopsis:[4]

Fadogia

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Genus Fadogia:[4]

Gaillonia

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Genus Gaillonia:[4]

Galium

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Genus Galium:[4]

Galopina

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Genus Galopina:[4]

Gardenia

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Genus Gardenia:[4]

Geophila

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Genus Geophila:[4]

Guettarda

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Genus Guettarda:[4]

Hedyotis

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Genus Hedyotis:[4]

Heinsia

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Genus Heinsia:[4]

Hymenodictyon

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Genus Hymenodictyon:[4]

Hyperacanthus

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Genus Hyperacanthus:[4]

Hypobathrum

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Genus Hypobathrum:[4]

Ixora

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Genus Ixora:[4]

Keetia

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Genus Keetia:[4]

Kohautia

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Genus Kohautia:[4]

Kraussia

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Genus Kraussia:[4]

Lagynias

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Genus Lagynias:[4]

Leptactina

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Genus Leptactina:[4]

Mitriostigma

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Genus Mitriostigma:[4]

Nenax

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Genus Nenax:[4]

Oldenlandia

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Genus Oldenlandia:[4]

Otiophora

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Genus Otiophora:[4]

Oxyanthus

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Genus Oxyanthus:[4]

Pachystigma

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Genus Pachystigma:[4]

Paederia

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Genus Paederia:[4]

Pavetta

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Genus Pavetta:[4]

Pentanisia

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Genus Pentanisia:[4]

Pentas

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Genus Pentas:[4]

Pentodon

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Genus Pentodon:[4]

Phylohydrax

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Genus Phylohydrax:[4]

Plectronia

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Genus Plectronia:[4]

Plectroniella

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Genus Plectroniella:[4]

Plocama

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Genus Plocama:[4]

Psychotria

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Genus Psychotria:[4]

Psydrax

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Genus Psydrax:[4]

Pygmaeothamnus

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Genus Pygmaeothamnus:[4]

Pyrostria

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Genus Pyrostria:[4]

Randia

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Genus Randia:[4]

Richardia

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Genus Richardia:[4]

Rothmannia

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Genus Rothmannia:[4]

Rubia

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Genus Rubia:[4]

Rytigynia

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Genus Rytigynia:[4]

Sericanthe

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Genus Sericanthe:[4]

Sherardia

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Genus Sherardia:[4]

Spermacoce

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Genus Spermacoce:[4]

Stylocoryne

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Genus Stylocoryne:[4]

Tapiphyllum

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Genus Tapiphyllum:[4]

Tarenna

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Genus Tarenna:[4]

Tricalysia

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Genus Tricalysia:[4]

Trichostachys

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Genus Trichostachys:[4]

Vangueria

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Genus Vangueria:[4]

References

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  1. ^ "Angiosperm Phylogeny Website". Retrieved 1 June 2014.
  2. ^ Butler, Rhett A. (1 July 2019). "Total number of plant species by country". Mongabay. Retrieved 21 July 2019.
  3. ^ "Vegetation of South Africa". PlantZAfrica.com. SA National Biodiversity Institute. Retrieved 24 July 2019.
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx "species_checklist_20180710.csv". South African National Biodiversity Institute. Retrieved 27 September 2020.