Taxonomy of Mimosa (Leguminosae) clade Petiolovariabilis
Data files
Apr 09, 2026 version files 653.89 KB
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README.md
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Supplemental_data-I.ods
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Supplemental_data-II.ods
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Supplemental_data-III.csv
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Abstract
This dataset is part of a taxonomic treatment of the Petiolovariabilis clade of the genus Mimosa that includes a taxonomic revision of M. sect. Batocaulon ser. Filipedes and Paucifoliatae. The Petiolovariabilis clade comprises 30 species, including typical varieties of species subdivided at the variety rank, together with six additional non-typical varieties, totaling 36 lowest taxonomic units, mainly found in Brazil. These species are mostly herbs, subshrubs or shrubs found in seasonally dry forests and savannas. Supplemental Data I is a database of 3,664 examined specimens, including their source herbarium and fully revised coordinates. Supplemental Data II is a character matrix comprising all examined and informative traits. The final column contains a concatenated character string that generates a complete taxonomic description in text format. Supplemental Data III is a list of petiole vouchers used in the figures of this study. These datasets support the taxonomic treatment of the Petiolovariabilis clade of Mimosa presented in the associated manuscript.
Dataset DOI: https://doi.org/10.5061/dryad.bnzs7h4p1
Description of the data and file structure
The data were collected as part of a comprehensive taxonomic revision of Mimosa clade Petiolovariabilis. The dataset includes specimen-level occurrence records, a morphological character matrix used for species delimitation, and voucher references supporting illustrated diagnostic structures.
Supplemental_data-I.ods compiles 3,664 herbarium specimens with geographic coordinates and collection metadata forming the basis for distributional analyses.
Supplemental_data-II.ods provides a morphological character matrix including all examined and informative traits used for species delimitation and comparative analyses. The final column (Description) contains concatenated standardized morphological descriptions derived from matrix states and used to support the formal taxonomic treatment.
Supplemental_data-III.csv documents voucher specimens used for petiole illustrations presented in the manuscript figures.
Together, these datasets support species delimitation, morphological comparison, standardized species descriptions, and reproducibility of illustrated diagnostic characters.
Missing data codes
Missing values follow these conventions:
| Code | Meaning |
|---|---|
| N/A | character not applicable |
| null | reserved for structurally expected but unavailable values (if present) |
| empty | Empty cells indicate that the corresponding information was either not observed during specimen examination or that the structure is absent in the corresponding taxon |
When necessary, geographic coordinates were revised during georeferencing validation; original coordinates are preserved in the latitude and longitude fields.
Files and variables
File: Supplemental_data-I.ods
Description
This file contains 3,664 herbarium specimen records examined during the taxonomic revision of Mimosa clade Petiolovariabilis. The dataset includes specimen metadata, geographic coordinates, collector information, habitat descriptions, and taxonomic determination details.
These records form the basis for the distributional analyses presented in the manuscript.
Variables
catalogueNumber
Unique specimen identifier assigned by the herbarium collection.
specificEpithet
Species epithet within genus Mimosa.
variety
Infraspecific rank when applicable.
country
Country of collection.
state_department_province
Administrative region of collection locality. Brazilian states are abbreviated following standard two-letter IBGE state codes.
municipality
Municipality of collection locality. "s.m." = sine municipality (municipality not specified on specimen label).
locality
Verbatim locality description transcribed from specimen label. "s.l." = sine locality (locality not specified on specimen label).
habitat
Habitat description recorded on specimen label.
latitude
Original latitude recorded on specimen label or herbarium database in degrees, minutes and seconds (DMS) format.
longitude
Original longitude recorded on specimen label or herbarium database in degrees, minutes and seconds (DMS) format.
elevation
Elevation above sea level (meters).
collector_initialName
Initial(s) of collector given name.
collector_lastName
Collector surname.
collectorNumber
Collector’s field number associated with specimen.
other_collectors
Names of additional collectors associated with specimen.
day / month / year
Collection date as recorded on specimen label.
determinator
Person responsible for taxonomic identification.
determinationDate
Date of taxonomic identification.
notes
Additional specimen label annotations.
conservationUnit
Protected area where specimen was collected, when applicable.
phenology
Reproductive condition at time of collection (flowering [fl.], fruiting [fr.], sterile [ster.]).
herbarium
Institutional acronym following Index Herbariorum standards.
decimalDegree_Lat
Revised latitude (decimal degrees) after coordinate validation and georeferencing correction.
decimalDegree_Lon
Revised longitude (decimal degrees) after coordinate validation and georeferencing correction.
typus
Indicates whether specimen corresponds to nomenclatural type material (e.g., holotype, isotype).
number
Internal dataset record identifier.
collectorIndex_citation
Standardized collector citation format used in specimen references.
File: Supplemental_data-II.ods
Description
Morphological character matrix including all examined and informative characters used for species delimitation and comparative analyses within Mimosa clade Petiolovariabilis.
Characters were scored from herbarium specimens examined during the taxonomic revision. Empty cells indicate that the corresponding information was either not observed during specimen examination or that the structure is absent in the taxon.
The final column (Description) corresponds to concatenated standardized descriptive statements derived automatically from matrix character states and used to support formal species descriptions.
Continuous measurements are expressed in millimeters (mm) when applicable.
Variables
The matrix includes vegetative, leaf architectural, indumentum, floral, fruit, and seed characters.
Examples include:
Clade
Taxonomic clade assignment within Mimosa.
Species
Species name.
Variety
Infraspecific rank when applicable.
Habit
Growth form (e.g., shrub, subshrub).
Stems
Stem morphology and armature.
Prickles
Presence and morphology of prickles.
Trichomes
General indumentum type.
Granular trichomes
Presence/absence of glandular trichomes.
Stipule length
Length of stipules (mm).
Stipule venation
Venation pattern of stipules.
Stipule persistence
Persistence state (persistent or caducous).
Phyllotaxis
Leaf arrangement along stem.
Number of pinnae pair(s)
Number of pinna pairs per leaf.
Petiole size/length
Petiole length (mm).
Leaf-rachis length
Length of leaf rachis (mm).
Number of leaflet pairs
Number of leaflet pairs per pinna.
Leaflet size
Leaflet length and width (mm).
Inflorescence size
Inflorescence diameter (mm).
Peduncle length
Peduncle length (mm).
Bracteole length
Length of bracteoles (mm).
Calyx length
Length of calyx (mm).
Corolla length
Length of corolla (mm).
Filaments length
Filament length (mm).
Craspedium size
Fruit length (mm).
Seed size
Seed length (mm).
Pleurogram
Presence/absence and morphology of pleurogram.
Description
Concatenated standardized morphological description derived from character matrix states.
All remaining columns correspond to discrete morphological character states describing presence/absence, shape categories, persistence state, indumentum type, or structural morphology.
File: Supplemental_data-III.csv
Description
This file lists voucher specimens used to document petiole morphology illustrated in the figures of the manuscript.
Each illustrated structure is traceable to a physical herbarium specimen examined under stereoscopic microscopy, ensuring reproducibility of diagnostic character interpretation.
Variables
item
Figure identifier.
subitem
Panel identifier within figure.
taxa
Taxon name corresponding to illustrated structure.
specimen
Herbarium voucher specimen citation used for illustration.
Supplemental Data I is an .ods file containing a list of specimens from 36 herbaria visited in person and digital images of specimens from 60 herbaria. The herbaria we visited in person were: ALCB, BHCB, BHZB, BOTU, BR, BRBA, BRI, CEN, CEPEC, CGMS, CNS, CTES, DES, EAC, ESA, FURB, GFJP, GH, GUA, HCF, HEPH, HRB, HRCB, HUEFS, HUFU, HUNEB, HUTO, HVASF, IAC, IAN, IBGE, INPA, JPB, K, KFP, L, LAE, LAGU, LBV, LIL, LP, MBA, MBM, MEL, MPU, PAMG, PE, QRS, R, RB, RBR, S, SP, SPF, SPSF, U, UB, UBT, UC, UCWI, UEC, UFRN, US, VIC, VIES, W, and WAG. The herbaria from which we examined digital images were: A, ARIZ, ASU, BISH, BM, BRIT, CANB, CHR, CM, CRI, DNA, F, G, HUNEB, IAC, ICN, MEXU, MICH, MO, NHGC, NMC, NY, P, PERTH, R, SI, and WU. The columns decimalDegree_Latand decimalDegree_Lon contain the curated coordinates used in the distribution maps.
Supplemental Data II is provided as an .ods file specifically prepared to support the taxonomic treatment. Its last column contains a concatenation of all fields, resulting in a complete and comprehensive taxonomic description for each taxon.
Supplemental Data III is a .csv file listing the vouchers for each petiole illustration and the photographs obtained from herbarium specimens using a stereoscopic microscope.