Rothmannia

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Gentianales

Familia: Rubiaceae
Subfamilia: Ixoroideae
Tribus: Gardenieae
Genus: Rothmannia
Species: R. annae – R. capensis – R. ebamutensis – R. engleriana – R. fischeri – R. globosa – R. hispida – R. jollyana – R. lateriflora – R. libisa – R. liebrechtsiana – R. longiflora – R. lujae – R. macrocarpa – R. macrosiphon – R. manganjae – R. mayumbensis – R. munsae – R. octomera – R. ravae – R. talbotii – R. urcelliformis - R. whitfieldii

Check: R. eucodon
Name

Rothmannia Thunb., Kongl. Vetensk. Acad. Handl. 37: 65 (1776)

Typus: R. capensis
Thunb. (1776)

Distribution
Native distribution areas:

Africa
West Tropical Africa
Benin, Burkina, Gambia, Ghana, Guinea-Bissau, Guinea, Ivory Coast, Liberia, Mali, Nigeria, Senegal, Sierre Leone, Togo.
West-Central Tropical Africa
Burundi, Cabinda, Central African Republic, Cameroon, Congo, Equatorial Guinea, Gabon, Gulf of Guinea Islands, Zaïre.
Northeast Tropical Africa
Chad, Ethiopia, Somalia, Sudan.
East Tropical Africa
Kenya, Tanzania, Uganda.
South Tropical Africa
Angola, Malawi, Mozambique, Zambia, Zimbabwe.
Southern Africa
Botswana, Cape Provinces, KwaZulu-Natal, Swaziland, Northern Provinces.
Western Indian Ocean
Seychelles.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Thunberg, C.P. 1776. Kongl. Vetenskaps Academiens Handlingar. Stockholm 37: 65.
Farr, E. R. & Zijlstra, G. (eds.) 1996-. Index Nominum Genericorum (Plantarum). 2010 Oct 12 [1].
Govaerts, R. et al. 2020. Rothmannia in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Mar. 5. Reference page.
International Plant Names Index. 2020. Rothmannia. Published online. Accessed: Mar. 5 2020.
Tropicos.org 2020. Rothmannia. Missouri Botanical Garden. Published on the internet. Accessed: 2020 Mar. 5.
Wong, K.M. & Pereira, J.T. 2016. A taxonomic treatment of the Asiatic allies of Rothmannia (Rubiaceae: Gardenieae), including the new genera Ridsdalea and Singaporandia. Sandakania 21: 21-64. Reference page.

Rothmannia is a genus of flowering plants in the family Rubiaceae. It was described in 1776 and is named for Göran Rothman (1739–1778) by Thunberg – both were pupils of Linnaeus.

Description

Although Rubiaceae flowers are generally organized in many-flowered inflorescences, solitary flowers are also found in this genus. The reduction of the number of flowers per inflorescence is often invertedly proportionate to the size of the flowers, which explains the large solitary flowers of some Rothmannia.[1]
Distribution and species

The genus originally had wide distribution, but is now restricted to species found in tropical and southern Africa:[2]

Rothmannia annae (E.P. Wright) Keay
Rothmannia capensis Thunb.
Rothmannia ebamutensis Sonké
Rothmannia engleriana (K.Schum.) Keay
Rothmannia fischeri (K.Schum.) Bullock ex Oberm.
Rothmannia globosa (Hochst.) Keay
Rothmannia hispida (K.Schum.) Fagerl.
Rothmannia jollyana N. Hallé
Rothmannia lateriflora (K.Schum.) Keay
Rothmannia libisa N. Hallé
Rothmannia liebrechtsiana (De Wild. & T. Durand) Keay
Rothmannia longiflora Salisb.
Rothmannia lujae (De Wild.) Keay
Rothmannia macrocarpa (Hiern) Keay
Rothmannia macrosiphon (K.Schum.) Bridson
Rothmannia manganjae (Hiern) Keay
Rothmannia mayumbensis(R.D. Good) Keay
Rothmannia munsae (Schweinf. ex Hiern) E.M.A. Petit
Rothmannia octomera (Hook.) Fagerl.
Rothmannia ravae (Chiov.) Bridson
Rothmannia talbotii (Wernham) Keay
Rothmannia urcelliformis (Hiern) Bullock ex Robyns
Rothmannia whitfieldii (Lindl.) Dandy

Asian species moved to other genera

The species found in western Indian Ocean, southern China to Indo-China and New Guinea are now placed in other genera, especially Ridsdalea:[3][4]

R. attopevensis (Pit.) Bremek.
R. daweishanensis Y.M. Shui & W.H. Chen
R. eucodon (K.Schum.) Bremek.
R. kampucheana Tirveng.
R. kuchingensis (W.W.Sm.) K.M. Wong and R. malayana K.M. Wong are synonyms of Ridsdalea grandis (Korth.) J.T.Pereira
R. macromera (Lauterb. & K.Schum.) Fagerl.
R. merrillii (Elmer) J.T. Pereira & Ridsdale
R. pulcherrima (Kurz) Tirveng.
R. schoemannii (Teijsm. & Binn.) Tirveng.
R. sootepensis (Craib) Bremek.
R. thailandica Tirveng.
R. uranthera (C.E.C. Fisch.) Tirveng.
R. venalis Bremek.
R. vidalii Bremek.
R. vietnamensis Tirveng.
R. wittii (Craib) Bremek.

Rothmannia macrophylla (Hook.f.) Bremek. is a synonym of Singaporandia macrophylla (Hook.f.) K.M.Wong
References

Robbrecht E, Puff C (1986). "A survey of the Gardenieae and related tribes (Rubiaceae)". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie. 108 (1): 63–137.
"Rothmannia in the World Checklist of Rubiaceae". Retrieved 1 February 2013.
Pereira JT, Wong KM (2016) Sandakania 21: 42.
IPNI - Rubiaceae: Ridsdalea J.T.Pereira & K.M.Wong