Erythroxylum confertifolium, a new species from Chapada dos Veadeiros National Park, Goiás, Brazil, unveiled by morphology and leaf anatomy Author Silva, Marcos José Da Laboratório de Morfologia e Taxonomia Vegetal, Instituto de Ciências Biológicas, Departamento de Botânica, Universidade Federal de Goiás, CP 131, 74001 - 970, Goiânia, GO, Brazil. Author Santos, Igor Soares Dos Programa de Pós-graduação Biologia Vegetal, Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista “ Júlio de Mesquita Filho ”, 18618 - 970, Botucatu, SP, Brazil. text Phytotaxa 2023 2023-06-21 600 2 55 72 http://dx.doi.org/10.11646/phytotaxa.600.2.1 journal article 53762 10.11646/phytotaxa.600.2.1 54e16c75-caa3-44e3-9b4d-c671318e57ab 1179-3163 8062847

TABLE 2. Differential anatomical characters between E. campestre, E. confertifolium e E. parvistipulatum.

Region/Characters	E. campestre	E. confertifolium	E. parvistipulatum
Petiole
Lateral extensions	Long	Short	Short
Accessory vascular bundles	Present	Absent	Absent
Main vascular bundle	Open arc	Open arc	Closed arc
Perivascular sheath	Composed by parenchymatic cells	Composed by descontinuous fibers	Composed by continuous fibers
Leaf blade
Palisade parenchyma/spongy parenchyma ratio	30/70%	70/30%	50/50%
Papillae on the abaxial surface	Absent	Absent	Present
Margin	Straight and acute	Obtuse and slightly inflected downwards	Obtuse and slightly inflected downwards
Midrib
Composition of the cortex on upper surface	1 to 4 layers of angular collenchyma and 2–4 of ground parenchyma	1 or 2 layers of angular collechyma, 2 of palisade parenchyma and 1–3 of ground parenchyma	5–6 layers of angular collenchyma
Contourn	Biconvex	Plano-convex	Biconvex
Composition of the cortex on the lower surface	4 or 5 layers of angular collenchyma and 4 of ground parenchyma	3 layers of angular collenchyman and 2 or 3 of the ground parenchyma	7 layers of angular collenchyma and 1 or 2 of ground parenchyma
Accessory vascular bundles	Present	Absent	Present
Main vascular bundle	Closed arc	Open arc	Open arc
Fibers that surround the main vascular bundle	Libriform	Gelatinous	Gelatinous
Extension of the sclerenchymatic sheath in the main vascular bundle	Absent	Present	Absent