Nonnullae herbariiOldenlandiam non agnoscunt, sed nonnullas vel omnes eius species in Hedyotesensu lato ponunt.[6]Hedyotis autem ad monophyleticum specierum circa 115 cladum nuper circumscripta est, quae Oldenlandiam non iam comprehendit.[7] Genus Oldenlandia hodie definitum est polyphyleticum, et in gregem specierum ad typum generis arte coniunctarum digeretur. Hic grex, in privato Oldenlandiasensu stricto appellatus, est sororsectionis generis Kohautiae quod ad ultimum a Kohautiaamovebitur et novum genus nominabitur.[7]
↑Inge Groeninckx, Steven Dessein, Helga Ochoterena, Claes Persson, Timothy J. Motley, Jesper Kårehed, Birgitta Bremer, Suzy Huysmans, et Erik Smets (2009), "Phylogeny of the herbaceous tribe Spermacoceae (Rubiaceae) based on plastid DNA data," Annals of the Missouri Botanical Garden 96(1):109-132.
↑David J. Mabberley, Mabberley's Plant-Book,' ed. 3a (Cambridge University Press, 2008), ISBN 9780521820714.
↑Oldenlandia In: Index Nominum Genericorum. In Regnum Vegetabile. Vide nexus externos infra.
↑Carolus Linnaeus, Species Plantarum (1753), 1:119. Laurentii Salvii. Vide nexus externos infra.
↑Umberto Quattrocchi, CRC World Dictionary of Plant Names, vol. 3 (Baton Rouge, Novi Eboraci, Londinii, Vasingtoniae: CRC Press, 2000, ISBN 9780849326738). Vide nexus externos infra.
↑Edward E. Terrell (1996), "Revision of Houstonia (Rubiaceae-Hedyotideae)," Systematic Botany Monographs 48(10 Iunii):1–118; doi:10.2307/25027862.
↑ 7.07.1Jesper Kårehed, Inge Groeninckx, Steven Dessein, Timothy J. Motley, et Birgitta Bremer (2008), "The phylogenetic utility of chloroplast and nuclear DNA markers and the phylogeny of the Rubiaceae tribe Spermacoceae," Molecular Phylogenetics and Evolution 49(3):843–866; doi:10.1016/j.ympev.2008.09.025.