Confirmed polyphyly, generic recircumscription and typification of Dysoxylum (Meliaceae), with revised disposition of currently accepted species Author Holzmeyer, Laura Frank Hauenschild, & David J. Mabberley & Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, Leipzig, 04103, Germany & intergenic spacer support this hypothesis. Six strongly supported clades within Dysoxylum s. l. were recovered, in large part supporting the classification of Harms. Based on the largest molecular phylogenetic tree hitherto assembled, and morphological considerations, a revised disposition of 94 currently recognized Dysoxylum species, is presented, reinstating the genera Didymocheton, Epicharis, Goniocheton, Prasoxylon and Pseudocarapa. The first valid publication of the generic name Dysoxylum is identified, and it is typified with D. macrocarpum. Forty-three new combinations at species level and two at infraspecific are proposed; Didymocheton nutans, Dysoxylum alatum, D. pachyphyllum, Epicharis, Trichilia spectabilis and T. alliacea (second step) are lectotypified. Author Hauenschild, Frank Frank Hauenschild, & David J. Mabberley & Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, Leipzig, 04103, Germany & intergenic spacer support this hypothesis. Six strongly supported clades within Dysoxylum s. l. were recovered, in large part supporting the classification of Harms. Based on the largest molecular phylogenetic tree hitherto assembled, and morphological considerations, a revised disposition of 94 currently recognized Dysoxylum species, is presented, reinstating the genera Didymocheton, Epicharis, Goniocheton, Prasoxylon and Pseudocarapa. The first valid publication of the generic name Dysoxylum is identified, and it is typified with D. macrocarpum. Forty-three new combinations at species level and two at infraspecific are proposed; Didymocheton nutans, Dysoxylum alatum, D. pachyphyllum, Epicharis, Trichilia spectabilis and T. alliacea (second step) are lectotypified. Author Mabberley, David J. & Alexandra N. Muellner-Riehl & Wadham College, University of Oxford, United Kingdom; Department of Biological Sciences, Macquarie University, and Australian Institute of Botanical Science (National Herbarium of New South Wales), Sydney, Australia Author Muellner-Riehl, Alexandra N. Frank Hauenschild, & David J. Mabberley & Department of Molecular Evolution and Plant Systematics & Herbarium (LZ), Institute of Biology, Leipzig University, Leipzig, 04103, Germany & intergenic spacer support this hypothesis. Six strongly supported clades within Dysoxylum s. l. were recovered, in large part supporting the classification of Harms. Based on the largest molecular phylogenetic tree hitherto assembled, and morphological considerations, a revised disposition of 94 currently recognized Dysoxylum species, is presented, reinstating the genera Didymocheton, Epicharis, Goniocheton, Prasoxylon and Pseudocarapa. The first valid publication of the generic name Dysoxylum is identified, and it is typified with D. macrocarpum. Forty-three new combinations at species level and two at infraspecific are proposed; Didymocheton nutans, Dysoxylum alatum, D. pachyphyllum, Epicharis, Trichilia spectabilis and T. alliacea (second step) are lectotypified. & German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, 04103, Germany muellner-riehl@uni-leipzig.de text TAXON 2021 2021-12-31 70 6 1248 1272 http://dx.doi.org/10.1002/tax.12591 journal article 10.1002/tax.12591 1996-8175 14047415 1. Pseudocarapa championii (Thwaites) Hemsl. in Hooker’ s Icon. Pl. 15: 46. 1884 ≡ Dysoxylum championii Hook.f. & Thomson ex Thwaites, Enum. Pl. Zeyl. : 61. 1858 – Lectotype (designated by Mabberley in Dassanayake & al., Rev. Handb. Fl. Ceylon 9: 242. 1995 ): Sri Lanka , Kandy Dist., Hantane, Thwaites CP1193 (PDA barcode PDA00006831!). Distribution. – Sri Lanka . Note. – See also Mabberley (1995a: 242) .