A new species of Tabebuia for the Central Brazilian Plateau

Authors

  • Rosana Farias-Singer Universidade Federal do Rio Grande do Sul
  • Carolyn Elinore Barnes Proença Universidade de Brasília https://orcid.org/0000-0002-8924-2692

DOI:

https://doi.org/10.17648/heringeriana.v2i1.918022

Keywords:

Endemism, Handroanthus, Chapada dos Veadeiros, Savanna

Abstract

This paper presents a new species of Tabebuia (Bignoniaceae) from the Central Brazilian Plateau, probably the smallest in the
genus. Tabebuia coronata Proença & Farias-Singer is distinguised from other species of Tabebuia by the combination of being a cespitose subshrub with unifoliolate leaves, petioles 7-10mm long, inflorescence a congested capitate raceme, subtended by a crown of woody, subulate or obtuse cataphylls, by the subsessile flowers, calyx with conspicuous pateliform glands, corolla
5.2-6cm long, ovary with length/width ratio of 1.5, ovules 8-seriate with 12-15 rows per locule, and fruits that are 10,5-16,5cm long. T. coronata occurrs in rocky cerrados in high-altitude regions of the Distrito Federal and Chapada dos Veadeiros,
Goiás.

Author Biographies

Rosana Farias-Singer, Universidade Federal do Rio Grande do Sul

Bolsista do CNPq. Departamento de Botânica, Universidade Federal do Rio Grande do Sul. Trabalho resultante de Dissertação de Mestrado, Pós-graduação em Botânica

Carolyn Elinore Barnes Proença, Universidade de Brasília

Professora Associada. Departamento de Botânica, Universidade de Brasília

References

FARIAS, R. Fitogeografia dos gêneros Jacaranda Juss. e Tabebuia Gomes ex DC. no Bioma Cerrado. Departamento de Botânica, Universidade de Brasília. Brasília, 2000. 112 f (Dissertação de Mestrado)

GENTRY, A.H. Bignoniaceae Part 2 (Tecomeae). Flora Neotropica Monographs 56. 1992. 370p.

GROSE, S. & OLMSTEAD. Evolution of a charismatic neotropical clade: molecular phylogeny of Tabebuia s.l., Crescentieae, and allied genera (Bignoniaceae). Systematic Botany v. 32, n. 3, p. 650-659, 2007.

GROSE, S.O. & OLMSTEAD, R.G. Taxonomic Revisions in the Polyphyletic Genus Tabebuia s. l. (Bignoniaceae). Systematic Botany, v. 32, n. 3, p. 660-670, 2007.

MENDONÇA, R.C.; FELFILI, J.M.; WALTER, B.M.T.; SILVA JÚNIOR, M.C.; REZENDE, A.V.; FILGUEIRAS, T.S.; NOGUEIRA, P.E. & FAGG,

C.W. Flora vascular do Bioma Cerrado: check-list com 12.356 espécies. In: SANO, S.M.; ALMEIDA, S.P. & RIBEIRO, J.F. (eds.). Cerrado: ecologia e flora, vol. 2. 1279 p.

RATTER, J.A.; BRIDGEWATER, S.G. & RIBEIRO, J.F. Analysis of the floristic composition of the Brazilian Cerrado Vegetation III: comparison of the woody vegetation of 376 areas. Edinburgh Journal of Botany v. 60, p. 57-109, 2003.

Published

2008-01-01

How to Cite

Farias-Singer, R., & Proença, C. E. B. (2008). A new species of Tabebuia for the Central Brazilian Plateau . Heringeriana, 2(1), 81–84. https://doi.org/10.17648/heringeriana.v2i1.918022

Issue

Section

Original Articles

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