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512.0000 Family Acanthaceae Juss.; Gen. Pl. [Jussieu] 102 (1789) (´Acanthi´), nom. cons.
ca. 192 genera, ca. 5500 spp. Phylogeny: Manzitto-Tripp et al. 2022
Species listed in database: 5597
= Avicenniaceae Miq.; Pl. Preiss. [J.G.C.Lehmann] 1: 353 (1845), nom. cons.
= Justiciaceae Raf.; Fl. Tellur. 4: 60 (1838)
= Mendonciaceae Bremek.; Proc. Kon. Ned. Akad. Wetensch. C 56: 540 (1954)
= Meyeniaceae Sreem.; Phytologia 37: 412 (1977)
= Nelsoniaceae (Nees) Sreem.; Phytologia 37: 412 (1977)
= Thunbergiaceae Lilja; Skånes Fl., ed. 2: 979 (1870)
512.5036 Genus Ruttya Harv.; London J. Bot. 1: 27 (1842)
Distribution: Tropical (2) and South Africa (1), Madagascar
Species listed in database: 6
= Haplanthera Hochst.; Flora 26: 71 (1843)
species :
Ruttya bernieri Benoist; Notul. Syst. (Paris) 13: 11 (1947)
Distribution: Madagascar
29 MDG
species :
Ruttya fragrans Benoist; Notul. Syst. (Paris) 13: 12 (1947)
Distribution: Madagascar
29 MDG
species :
Ruttya fruticosa Lindau; Bot. Jahrb. Syst. 20: 45 (1894)
Distribution: Ethiopia; Djibouti; Somalia; Uganda; Kenya; Tanzania; Zambia [I]; Malawi [I]; Zimbabwe [I]; Oman (Dhofar); Yemen
24 DJI ETH SOM 25 KEN TAN UGA 26 mlw zam zim 35 OMA YEM
species :
Ruttya ovata Harv.; London J. Bot. 1: 27 (1842)
Distribution: Mozambique; South Africa (Limpopo, Mpulamanga, KwaZulu-Natal, E-Cape Prov.); Eswatini [Swaziland]
26 MOZ 27 SAF SWZ
Synonyms: hidden
= Duvernoia trichocalyx Lindau; Bot. Jahrb. Syst. 22: 122 (1895)
= Hypoestes fimbriata E.Mey.; Zwei Pflanzengeogr. Docum. [Drège] 193 (1843)
species :
Ruttya speciosa (Hochst.) Engl.; Hochgebirgsfl. Afrika [Engler] 392 (1892)
Distribution: Ethiopia
24 ETH
Synonyms: hidden
= Haplanthera speciosa Hochst.; Flora 26: 72 (1843)
species :
Ruttya tricolor Benoist; Notul. Syst. (Paris) 13: 12 (1947)
Distribution: Madagascar
29 MDG
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A complete, synonymic checklist of the Higher Plants of the World


Version 26.08 (August 2nd, 2026)

Covering 360,349 accepted species,
8,927 hybrids, 47,544 accepted infraspecific taxa and 1,011,667 synonyms,
in total 1,428,487* names

[*about 20,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]


With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life