''Tournaya'' is a
monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...
genus 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 belonging to the family
.
It just contains one species, ''Tournaya gossweileri''
(Baker f.) A.Schmitz
Its native range is western central Tropical Africa and is found in the countries of Angola, Congo, Gabon and Zaïre.
The genus name of ''Tournaya'' is in honour of
Roland Louis Jules Alfred Tournay
Roland (; frk, *Hrōþiland; lat-med, Hruodlandus or ''Rotholandus''; it, Orlando or ''Rolando''; died 15 August 778) was a Frankish military leader under Charlemagne who became one of the principal figures in the literary cycle known as the ...
(1925–1972), a Belgian botanist and publisher of the bulletin of the
National Botanic Garden of Belgium
The Meise Botanic Garden ( nl, Plantentuin Meise, french: Jardin botanique de Meise), until 2014 called the National Botanic Garden of Belgium ( nl, Nationale Plantentuin van België, french: Jardin Botanique National de Belgique), is a botani ...
(now the Meise Botanic Garden). The Latin
specific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
of ''gossweileri'' is due to the Swiss-born Angolan botanist,
John Gossweiler
Johannes Gossweiler (24 December 1873, in Regensdorf – 19 February 1952, in Lisbon) aka John Gossweiler or João Gossweiler, was state botanist to the Government of Angola from 1899 until his death. He made important collections in every di ...
(1873-1952), who collected the type specimen of ''
G. lanceolata''. Both the genus and the species were first described and published in Bull. Jard. Bot. Natl. Belg. Vol.43 on page 397-398 in 1973.
It was downgraded to a synonym of ''
Gigasiphon
''Gigasiphon'' is a genus of plants in the family Fabaceae. The genus is circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this cir ...
'' in 2010, but then re-established as a separate genus in 2020.
References
{{Taxonbar, from1=Q17435447, from2=Q15543688
Cercidoideae
Monotypic Fabaceae genera
Plants described in 1973
Flora of Angola
Flora of West-Central Tropical Africa