DOI: 10.5061/dryad.k98sf7mct
title: Novelties in Phyllanthus sect. Phyllanthus subsect. Phyllanthus (Phyllanthaceae): Two new species, two new synonyms, and a lectotype

description:  An ongoing taxonomic work on Phyllanthus subsect. Phyllanthus,
 resulting from the analysis of protologues and the study of approximately
 2000 collections, including all types, historical collections, and
 observations in the field, led us to describe two new species (P. lobatus
 and P. platystigma), and to propose the synonymization of P. mimicus and
 P. bolivianus under P. niruri, as well as establish a lectotype for P.
 bolivianus. For both new species, we provide, descriptions, illustrations,
 preliminary conservation status, flowering and fruiting periods,
 environmental preferences and images in their habitat.  In
 addition, they are compared with morphologically similar congeners and
 their systematic position is discussed.
description: This work was based on the
 analysis of approximately 2000 specimens from 55 herbaria (AJU, ASE, ALCB,
 B, BM, BHCB, CAS, CEPEC, CESJ, CEN, CSTR, EAC, EAN, ESA, F, FURB, FLOR, G,
 GH, HURB, HUESB, HUEFS, HUFU, HRB, HST, HVASF, IBGE, ICN, INPA, IPA, JBP,
 K, L, MAC, MBM, MBML, MO, NY, P, PACA, PEUFR, RB, RN, S, SP, SPF, UFG, UB,
 US, UEC, UFRN, UFP, VIES, TEPB, W) (acronyms follow Thiers 2023), together
 with field collections for
 population observation. The new species were described based on
 collections deposited in BHCB, FURB, SP and UFG.  Morphological terms used
 in their descriptions follow Webster (2002), Silva and Sales (2007) Torres
 et al. (2022), complemented by Radford et al. (1974). Information about
 geographic distribution, flowering and fruiting times were compiled from
 labels of the specimens kept in the mentioned herbaria. Maps illustrating
 the geographic distribution of the species were generated using QGIS
 software version 2.18.17 ‘Las Palmas’ (QGIS 2015). Estimation of Extent of
 Occurrence (EOO) and Area of Occupancy (AOO) were performed using Geocat
 (http://geocat.kew.org/) following Bachman et al. (2011). Such information
 served as a basis for determining the conservation status, inferred
 through the categories and criteria of the World Conservation Union Red
 List (IUCN 2019). Taxonomic and nomenclatural decisions were based on the
 study of classic literature on the group (e.g., Webster 1955, 1956, Pax
 & Hoffmann 1921) supported by recommendations of Turland et al.
 (2018).
description: # Novelties in Phyllanthus sect. Phyllanthus subsect. Phyllanthus
 (Phyllanthaceae): Two new species, two new synonyms, and a lectotype
 [https://doi.org/10.5061/dryad.k98sf7mct](https://doi.org/10.5061/dryad.k98sf7mct) ## Description of the data and file structure The xlsx file contains a list of examined material from *Phylllanthus lobatus*, *P. platystigma* and *P. niruri*, which supported the decisions made in the article. The list of materials contains information about: country, stateprovince, institutioncode, collectioncode, family, scientificname, scientificnameauthor, yearcollected, monthcollected, daycollected, collector, collectornumber, city/municipality and locality. The lines that contain missing information are from specimens/exsiccates that did not have this information on the labels.