biostudies-literatureUnknown205Clark RPA recent molecular phylogenetic analysis of the Caesalpinia group demonstrated that it comprises 26 genera, but the recognition of a putative 27^th genus, <i>Ticanto</i>, remained in doubt. This study presents a phylogenetic analysis of ITS and five plastid loci revealing a robustly supported monophyletic group representing the Ticanto clade, sister to the morphologically distinct genus <i>Pterolobium</i>. Based upon this evidence, along with a morphological evaluation, the genus <i>Ticanto</i> is here reinstated. Descriptions are provided for all nine species of <i>Ticanto</i>, together with a key to the species, maps, and colour photographs. Nine new combinations are made: <i>Ticantocaesia</i> (Hand.-Mazz.) R. Clark & Gagnon, <i>T.crista</i> (L.) R. Clark & Gagnon, <i>T.elliptiPhytoKeys59-98https://www.ebi.ac.uk/biostudies/studies/S-EPMC9849013biostudies-literatureReinstatement of <i>Ticanto</i> (Leguminosae-Caesalpinioideae) - the final piece in the Caesalpinia group puzzle.PMC9849013Clark RPGagnon EJiang KWfalseReinstatement of <i>Ticanto</i> (Leguminosae-Caesalpinioideae) - the final piece in the Caesalpinia group puzzle.A recent molecular phylogenetic analysis of the Caesalpinia group demonstrated that it comprises 26 genera, but the recognition of a putative 27^th genus, <i>Ticanto</i>, remained in doubt. This study presents a phylogenetic analysis of ITS and five plastid loci revealing a robustly supported monophyletic group representing the Ticanto clade, sister to the morphologically distinct genus <i>Pterolobium</i>. Based upon this evidence, along with a morphological evaluation, the genus <i>Ticanto</i> is here reinstated. Descriptions are provided for all nine species of <i>Ticanto</i>, together with a key to the species, maps, and colour photographs. Nine new combinations are made: <i>Ticantocaesia</i> (Hand.-Mazz.) R. Clark & Gagnon, <i>T.crista</i> (L.) R. Clark & Gagnon, <i>T.ellipti2022-01-01T00:00:00Z20222026-05-28T11:52:00.075Z2025-04-07T03:22:11.008ZS-EPMC98490133676200810.3897/phytokeys.205.82300