Ruehssia

Classification System: APG IV

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

Familia: Apocynaceae
Subfamilia: Asclepiadoideae
Tribus: Marsdenieae
Genus: Ruehssia
Species: R. altissima – R. amorimii – R. amylacea – R. avacanoeira – R. bergii – R. brasiliensis – R. breviramosa – R. caatingae – R. calcaria – R. carvalhoi – R. clausa – R. cubensis – R. cubensis – R. dorothyae – R. fontellana – R. fusca – R. hatschbachii – R. heringeri – R. hilariana – R. lauretiana – R. lindenii  – R. linearis – R. longiflora – R. loniceroides – R. macrophylla – R. malmeana – R. megalantha – R. micrantha – R. minutiflora – R. montana – R. nana – R. neomanarae – R. otoniensis – R. paganuccii – R. paraibana – R. phallica – R. pickelii – R. riparia – R. rubrofusca – R. rupestris – R. saturejifolia – R. serpentina – R. sessilifolia – R. sprucei – R. suberosa – R. sumiderensis – R. thomasii – R. trisegmentata – R. ulei – R. umbellata – R. vinciflora – R. virgultorum – R. weddellii – R. yamanigueyensis – R. zehntneri
Name

Ruehssia H.Karst., Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 19: 304. (1849)

Type species: Ruehssia macrophylla (Humb. & Bonpl. ex Schult.) H.Karst., Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 19: 305. (1849)

Synonyms

Heterotypic
Harrisonia Hook., Bot. Mag. 53: t. 2699 (1826), nom. illeg.
Baxtera Rchb., Consp. Regn. Veg.: 131 (1828)
Sphinctostoma Benth. in G.Bentham & J.D.Hooker, Gen. Pl. 2: 772 (1876), not validly publ.
Verlotia E.Fourn. in C.F.P.von Martius & auct. suc. (eds.), Fl. Bras. 6(4): 324 (1885), nom. illeg.
Pseudomarsdenia Baill., Hist. Pl. 10: 268 (1890)
Elcomarhiza Barb.Rodr., Vellosia, ed. 2, 1: 44 (1891)
Ecliptostelma Brandegee, Univ. Calif. Publ. Bot. 6: 371 (1917)
Loniceroides Bullock, Kew Bull. 17: 487 (1963 publ. 1964)

References
Primary references

Karsten, G.K.W.H. 1849. Verhandlungen des Vereins zur Beförderung des Gartenbaues in den Königlich Preussischen Staaten 19: 304–307, t. 1.

Additional references

Bárrios, S., Sustache, J.A., Goyder, D.J. & Hamilton, M.A. 2020. New island record and conservation status of Puerto Rican Bank endemic plant species, Ruehssia woodburyana (Acev.-Rodr.) Goyder, comb. nov., formally transferred from Marsdenia. Biodiversity Data Journal 7: e47110. DOI: 10.3897/BDJ.8.e47110 Open access Reference page. 
Espírito Santo, F.S., Rapini, A., Ribeiro, P.L., Liede-Schumann, S., Goyder, D.J. & Fontella-Pereira, J. 2019. Phylogeny of the tribe Marsdenieae (Apocynaceae), reinstatement of Ruehssia and the taxonomic treatment of the genus in Brazil. Kew Bulletin 74(2)-30: 1–79. DOI: 10.1007/s12225-019-9807-4 Paywall Reference page. 
Reuss, S.J., Meve, U., Mangelsdorff, R.D. & Liede-Schumann, S. 2020. Transfer of Cuban Marsdenia to Ruehssia (Apocynaceae - Asclepiadoideae), and two new species in Ruehssia. Willdenowia 50(1): 29–37. DOI: 10.3372/wi.50.50104 Open access Reference page. 

Links

Govaerts, R. et al. 2020. Ruehssia in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Apr. 29. Reference page. 
International Plant Names Index. 2020. Ruehssia. Published online. Accessed: Feb. 28 2020.
Tropicos.org 2020. Ruehssia. Missouri Botanical Garden. Published online. Accessed: 29 Apr. 2020.

Ruehssia is a genus of plants in the family Apocynaceae.[1] It is also in the Asclepiadoideae subfamily and Marsdenieae tribe.[2][3]

Its native range is tropical and subtropical South America. It is found in Argentina (north-eastern and north-western), Belize, Bolivia, Brazil (north, north-eastern, south, south-eastern and west-central), Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Haiti, Honduras, Jamaica, the Leeward Islands, Mexico (north-eastern, south-eastern and south-western), Nicaragua, Panamá, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay, Venezuela and the Windward Islands.[1]

The genus name of Ruehssia is in honour of Carl Andreas Rühsz (1805–1880), the German consul in Puerto Cabello, Venezuela. He was a supporter of art and science.[4] It was first described and published in Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten Vol.19 on page 304 in 1849.[1]
Known species

According to Kew;[1]

Ruehssia altissima (Jacq.) F.Esp.Santo & Rapini
Ruehssia amorimii (Morillo) F.Esp.Santo & Rapini
Ruehssia amylacea (Barb.Rodr.) F.Esp.Santo & Rapini
Ruehssia avacanoeira (F.Esp.Santo) F.Esp.Santo & Rapini
Ruehssia bergii (Morillo) F.Esp.Santo & Rapini
Ruehssia brasiliensis (Decne.) F.Esp.Santo & Rapini
Ruehssia breviramosa (Rapini & Fontella) F.Esp.Santo & Rapini
Ruehssia caatingae (Morillo) F.Esp.Santo & Rapini
Ruehssia calcaria (F.Esp.Santo) F.Esp.Santo & Rapini
Ruehssia carvalhoi (Morillo & Carnevali) F.Esp.Santo & Rapini
Ruehssia clausa (R.Br.) Liede, S.Reuss & Meve
Ruehssia cubensis (Turcz.) Liede, S.Reuss & Meve
Ruehssia dorothyae (Fontella & Morillo) F.Esp.Santo & Rapini
Ruehssia fontellana (Morillo & Carnevali) F.Esp.Santo & Rapini
Ruehssia fusca (C.Wright ex Griseb.) Liede, S.Reuss & Meve
Ruehssia hatschbachii (Morillo) F.Esp.Santo & Rapini
Ruehssia heringeri (Fontella) F.Esp.Santo & Rapini
Ruehssia hilariana (E.Fourn.) F.Esp.Santo & Rapini
Ruehssia lauretiana (Woodson) F.Esp.Santo & Rapini
Ruehssia laxiflora (Donn.Sm.) Gonz.-Martínez & Lozada-Pérez
Ruehssia lindenii S.Reuss, Manitz & Liede
Ruehssia linearis (Decne.) Liede, S.Reuss & Meve
Ruehssia longiflora (A.Rich.) Liede, S.Reuss & Meve
Ruehssia loniceroides (Hook.) F.Esp.Santo & Rapini
Ruehssia macrophylla (Humb. & Bonpl. ex Schult.) H.Karst.
Ruehssia malmeana (W.Rothe) F.Esp.Santo & Rapini
Ruehssia megalantha (Goyder & Morillo) F.Esp.Santo & Rapini
Ruehssia micrantha (Alain) Liede, S.Reuss & Meve
Ruehssia minutiflora (F.Esp.Santo) F.Esp.Santo & Rapini
Ruehssia montana (Malme) F.Esp.Santo & Rapini
Ruehssia nana (Rapini & Fontella) F.Esp.Santo & Rapini
Ruehssia neomanarae (Morillo) F.Esp.Santo & Rapini
Ruehssia otoniensis (Fontella & Morillo) F.Esp.Santo & Rapini
Ruehssia paganuccii (F.Esp.Santo & A.P.B.Santos) F.Esp.Santo & Rapini
Ruehssia paraibana (F.Esp.Santo & A.P.B.Santos) F.Esp.Santo & Rapini
Ruehssia phallica (F.Esp.Santo) F.Esp.Santo & Rapini
Ruehssia pickelii (Fontella & Morillo) F.Esp.Santo & Rapini
Ruehssia pinetorum (Standl. & L.O.Williams) Gonz.-Martínez & Lozada-Pérez
Ruehssia riparia (Morillo & Spellman) F.Esp.Santo & Rapini
Ruehssia rubrofusca (E.Fourn.) F.Esp.Santo & Rapini
Ruehssia rupestris (F.Esp.Santo) F.Esp.Santo & Rapini
Ruehssia saturejifolia (A.Rich.) Liede, S.Reuss & Meve
Ruehssia serpentina (F.Esp.Santo) F.Esp.Santo & Rapini
Ruehssia sessilifolia (E.Fourn.) F.Esp.Santo & Rapini
Ruehssia sprucei (W.Rothe) F.Esp.Santo & Rapini
Ruehssia suberosa (E.Fourn.) F.Esp.Santo & Rapini
Ruehssia sumiderensis Lozada-Pérez, Ram.-Mar. & Gonz.-Martínez
Ruehssia thomasii (Morillo) F.Esp.Santo & Rapini
Ruehssia trisegmentata (F.Esp.Santo & A.P.B.Santos) F.Esp.Santo & Rapini
Ruehssia ulei (Schltr. & W.Rothe) F.Esp.Santo & Rapini
Ruehssia umbellata (Griseb.) Liede, S.Reuss & Meve
Ruehssia vinciflora (Griseb.) Liede, S.Reuss & Meve
Ruehssia virgultorum (E.Fourn.) F.Esp.Santo & Rapini
Ruehssia weddellii (E.Fourn.) F.Esp.Santo & Rapini
Ruehssia yamanigueyensis Mangelsdorff
Ruehssia zehntneri (Fontella) F.Esp.Santo & Rapini

A recently published Puerto Rican endemic plant species, Ruehssia woodburyana (Acev.-Rodr.) Goyder has not yet been accepted by Kew, it is listed as Critically Endangered (CR), based on Criteria C2a(i)+D, according to the IUCN Red List.[5]
References

"Ruehssia H.Karst. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 30 November 2021.
LIEDE-SCHUMANN, SIGRID; KELLER, HÉCTOR A. (17 November 2020). "New combinations in Ruehssia for the South American species of Marsdenia (Apocynaceae-Asclepiadoideae)". Phytotaxa. 471 (3). doi:10.11646/phytotaxa.471.3.10.
Espírito Santo, Fabio da Silva do; Rapini, Alessandro; Ribeiro, Patrícia Luz; Liede-Schumann, Sigrid; Goyder, David J.; Fontella-Pereira, Jorge (2019). "Phylogeny of the tribe Marsdenieae (Apocynaceae), reinstatement of Ruehssia and the taxonomic treatment of the genus in Brazil". Kew Bulletin. 74 (30).
Burkhardt, Lotte (2018). Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition [Index of Eponymic Plant Names – Extended Edition] (pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2018. ISBN 978-3-946292-26-5. Retrieved 1 January 2021.
Bárrios, Sara; Sustache, José A.; Goyder, David; Hamilton, Martin A. (23 January 2020). "New island record and conservation status of Puerto Rican Bank endemic plant species, Ruehssia woodburyana (Acev.-Rodr.) Goyder, comb. nov., formally transferred from Marsdenia". Biodivers. Data J. doi:10.3897/BDJ.8.e47110. PMID 32025187.