﻿Reinstatement of Ticanto (Leguminosae-Caesalpinioideae) – the final piece in the Caesalpinia group puzzle

descriptionPublicationkeyboard_double_arrow_right Article 22 Aug 2022Publisher:Pensoft PublishersJournal:PhytoKeys, volume 205, pages 59-98 (issn: 1314-2011, eissn: 1314-2003,

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Authors: Ruth P. Clark; Kai-Wen Jiang; Edeline Gagnon;

doi: 10.3897/phytokeys.205.82300

pmid: 36762008

pmc: PMC9849013

Reinstatement of Ticanto (Leguminosae-Caesalpinioideae) – the final piece in the Caesalpinia group puzzle

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Abstract

A recent molecular phylogenetic analysis of the Caesalpinia group demonstrated that it comprises 26 genera, but the recognition of a putative 27thgenus,Ticanto, 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 genusPterolobium. Based upon this evidence, along with a morphological evaluation, the genusTicantois here reinstated. Descriptions are provided for all nine species ofTicanto, together with a key to the species, maps, and colour photographs. Nine new combinations are made:Ticanto caesia(Hand.-Mazz.) R. Clark & Gagnon,T. crista(L.) R. Clark & Gagnon,T. elliptifolia(S. J. Li, Z. Y. Chen & D. X. Zhang) R. Clark & Gagnon,T. magnifoliolata(Metcalf) R. Clark & Gagnon,T. rhombifoliaR. Clark & Gagnon,T. sinensis(Hemsl.) R. Clark & Gagnon,T. szechuenensis(Craib) R. Clark & Gagnon,T. vernalis(Champion ex Benth.) R. Clark & Gagnon andT. yunnanensis(S. J. Li, D. X. Zhang & Z.Y. Chen) R. Clark & Gagnon. The final major question in the delimitation of segregate genera from withinCaesalpiniasensu latoand the Caesalpinia group is thus resolved.

Related Organizations

Chinese Academy of Sciences
China (People's Republic of)
University of Chinese Academy of Sciences
China (People's Republic of)
Royal Botanic Gardens
United Kingdom
Royal Botanic Garden Edinburgh
United Kingdom
Ludwig-Maximilians-Universität München
Germany

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Keywords

China, Fabales, phylogeny, Magnoliopsida, Caesalpinieae, Pterolobium, Mezoneuron, winged fruit, Plantae, Caesalpinia, Caesalpinia crista, Botany, Fabaceae, Biota, Tracheophyta, South-East Asia, Guilandina bonduc, QK1-989, Biancaea, Research Article, ddc: ddc:

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