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PLEONOTOMA ORIENTALIS (BIGNONIACEAE – BIGNONIEAE): EXPANDED DESCRIPTION, DISTRIBUTION AND A NEW VARIETY OF A POORLY KNOWN SPECIES

Published online by Cambridge University Press:  06 March 2007

C. E. B. PROENÇA ,
R. FARIAS-SINGER  and
B. M. GOMES
C. E. B. PROENÇA
Affiliation:
Departamento de Botânica, Universidade de Brasília, C.P. 4457 Brasília, DF, CEP 70919-970, Brazil. E-mail: cproenca@unb.br
R. FARIAS-SINGER
Affiliation:
Departamento de Botânica, Universidade Estadual de Campinas, C.P. 6109 Campinas, SP, CEP 130803-070, Brazil
B. M. GOMES
Affiliation:
Departamento de Botânica, Universidade de Brasília, C.P. 4457 Brasília, DF, CEP 70919-970, Brazil. E-mail: cproenca@unb.br
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Abstract

Pleonotoma orientalis Sandwith (Bignoniaceae), a poorly known species, is lectotypified, illustrated for the first time and a distribution map is provided. Pleonotoma orientalis Sandwith var. ratteriana Proença & Farias from the Jalapão area (State of Tocantins, Central Brazil) is described and illustrated. The new variety is apparently identical to the typical variety in floral characters but distinct in its ternate-tripinnate leaves with numerous, minute, slightly thickened leaflets, and fruits with rounded or obtuse tips. The collections of this new variety increase its range c.400 km S from Northern Brazil (Maranhão and Pará) into Tocantins in Central Brazil.

Keywords

BignoniaceaeBrazilcerradoJalapãolianaPleonotomaTocantins
Type
Articles
Information
Edinburgh Journal of Botany , Volume 64 , Issue 1 , March 2007 , pp. 17 - 23
Copyright
2007, Trustees of the Royal Botanic Garden, Edinburgh

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