DOI: 10.5061/dryad.bvq83bk8j
title: Data from: Tricky Morphology: A new species of Chamaecrista (Leguminosae) shows strong morphological convergence among not closely related species found in similar habitat

description: Plants from Brazilian campos rupestres usually present morphological
 strategies that allow them to survive in extreme environments. However, in
 Chamaecrista (Leguminosae, Caesalpinioideae), one of the most diverse
 genera in the campos rupestres, needle-like leaflets are rare. Reviewing
 the species that present such leaf morphology, we describe Chamaecrista
 acicularis, a new species, from the Canastra Range, in the southwestern
 region of the state of Minas Gerais, Brazil. Phylogenetic analyses
 revealed that C. acicularis is not closely related to other quite
 similar needle-like leafleted species and that this trait evolved
 convergently. We also present comments on the phylogenetic relationships
 of needle-like leafleted species as well as the evolution of the leaflet
 amplitude, and a detailed description of C. acicularis alongside
 illustrations, photos, geographical distribution, a key to the needle-like
 leafleted species and taxonomic notes on similar species. Additionally, we
 expand the description of Chamaecrista strictifolia and present a
 conservation status for all needle-like leafleted species.
description: <strong>Table of leaf characters</strong>
 Supplemental Table S1. Main leaf characters for all species used
 in ancestral character reconstruction and in our discussion.Table in DOCX
 file. Table_S1.docx
 <strong>Phylogenetic trees of Maximum Parsimony (MP) and
 Bayesian Inference (BI) analysis from ITS data
 set</strong> Supplemental Data S2. Bayesian
 phylogenetic consensus tree (Newick format) resulting from ITS DNA
 sequences for 71 <em>Chamaecrista</em> sequences.
 ITS_BI.tre Supplemental Data S3. Maximum
 parsimony phylogenetic majority-rule consensus tree (Newick format)
 resulting from ITS DNA sequences for 71
 <em>Chamaecrista</em> sequences.
 ITS_MP.tre <strong>Phylogenetic trees of
 Maximum Parsimony (MP) and Bayesian Inference (BI) analysis from ETS data
 set</strong> Supplemental Data S4. Bayesian
 phylogenetic consensus tree (Newick format) resulting from ETS DNA
 sequences for 43 <em>Chamaecrista</em> sequences.
 ETS_BI.tre Supplemental Data S5. Maximum
 parsimony phylogenetic majority-rule consensus tree (Newick forma
 resulting from ETS DNA sequences for
 43 <em>Chamaecrista</em> sequences.
 ETS_MP.tre <strong>Phylogenetic trees of
 Maximum Parsimony (MP) and Bayesian Inference (BI) analysis from
 <em>trnL-F</em> data set</strong>
 Supplemental Data S6. Bayesian phylogenetic consensus tree
 (Newick format) resulting from <i>trnL-F </i>DNA sequences for
 71 <em>Chamaecrista</em> sequences.
 trnLF_BI.tre Supplemental Data S7. Maximum
 parsimony phylogenetic majority-rule consensus tree (Newick format)
 resulting from <em>trnL-F</em> DNA sequences for 71
 <em>Chamaecrista</em> sequences.
 trnLF_MP.tre <strong>Phylogenetic trees
 of Maximum Parsimony (MP) and Bayesian Inference (BI) analysis from
 nuclear combined data set</strong> Supplemental
 Data S8. Bayesian phylogenetic consensus tree (Newick format) resulting
 from nuclear combined data set (ITS/5.8S+ETS) for 71
 <em>Chamaecrista</em> sequences.
 nuclear_BI.tre Supplemental Data S9. Maximum
 parsimony phylogenetic majority-rule consensus tree (Newick format)
 resulting from nuclear combined data set (ITS/5.8S+ETS) for 71
 <em>Chamaecrista</em> sequences.
 nuclear_MP.tre <strong>Phylogenetic
 trees of Maximum Parsimony (MP) and Bayesian Inference (BI) analysis from
 combined (all data) data set</strong>
 Supplemental Data S10. Bayesian phylogenetic consensus tree
 (Newick format) resulting from combined (all data) data set for 71
 <em>Chamaecrista</em> sequences.
 combined_BI.tre Supplemental Data S11. Maximum
 parsimony phylogenetic majority-rule consensus tree (Newick format)
 resulting from combined (all data) data set for 71
 <em>Chamaecrista</em> sequences
 combined_MP.tre <strong>Tree with
 ancestral character reconstruction analysis</strong>
 Supplemental Data S12.This tree file contains the character
 matrix, the set of 1,000 trees, which correspond to the last 500 trees
 from each of the two MCMC runs of the Bayesian combined analysis, and the
 majority-rule consensus tree of the Bayesian combined analysis. Data file
 for Mesquite (newick format).
 reconstruction.tre