Hippolyte Arnaud’s account of Limonium (Plumbaginaceae) in cultivation and the further nomenclatural importance of both Seringe

Justice is done to Hippolyte Arnaud’s 1849 account of Limonium (Plumbaginaceae) in Seringe’s Flore des Jardins - in the context of the neglect of that work and Jacques’ book (the parts of which are dated here for the first time) of the same name. Limonium platyphyllum Lincz. is an illegitimate (superfluous) name for L. coronarium H. Arnaud (lectotypified here); Limonium subg. Platyclados (Boiss.) Pignatti is correctly subg. Platycladus (Spach) H. Arnaud (lectotypified here). New species names and new combinations currently accepted, but first proposed by Arnaud and Seringe, besides Jacques and colleagues, rather than the hitherto attributed authors, are listed and are thereby made more secure (by up to more than 160 years). Acacia trapezoidea (DC.) Jacques is an older name for A. littorea Maslin (Leguminosae); Albizia lucida (Jacques) Benth. is restored as the correct name for A. lucidior (Steud.) H. Hara (Leguminosae); Alstroemeria venusta Ravenna, non Hort. ex Poit., will need a new name if it is distinct (Alstroemeriaceae), Clematis × pouzatii Ser. (Ranunculaceae), typified here, is confirmed as the correct name for what is often grown as C. × aromatica Lenné & Koch; Cupressus majestica Jacques is an earlier name for C. gigantea W.C. Cheng & L.L. Fu (Cupressaceae); Magnolia odoratissima Y.W. Law & R.Z. Zhou, non Reinw. ex Jacques (Magnoliaceae) is correctly M. lawiana Sima & Hong Yu once more; Pavetta australis Hügel ex Neumann (typified here) is apparently an older name for P. australiensis Bremek. (Rubiaceae); Physostegia pulchella Lundell (1959), non Jacques (1845), becomes P.lundelliorum P. Cantino & Mabb., nom. novum (Labiatae); Populus × ontariensis Loisel. (typified here) is an earlier name for P. × jackii Sarg. (Salicaceae), which familiar name should probably be conserved; Symphyotrichum × amethystinum (Nutt.) G.L. Nesom is correctly S. × parisinum (Poit.) Malécot & Mabb., comb. nova (Compositae). Dombeya ameliae Guill., Gladiolus × gandavensis Van Houtte, Lonicera × brownii Hort. Angl. ex P.N. Jacq., Manettia splendens Hort. Angl. ex Rousselon and Sedum sieboldii Poit. are newly typified; the basionym of Oreocereus celsianus (Cactaceae) is Pilocereus celsianus Hort. Paris. ex Jacques & Hérincq, which needs to be neotypified by an authority on the germane group, as does Cupressus majestica Duch. Names in Malvaviscus and Salvia so far elude elucidation, while other disregarded nomenclatural novelties by French and Belgian authors are being passed to IPNI/POWO.