A new species and notes on <i>Baccharis</i> sect. <i>Caulopterae</i> (Asteraceae) from Brazil

Schneider, Angelo Alberto; Heiden, Gustavo; Boldrini, Ilsi Iob

doi:10.1590/2175-7860201061106

Abstract

A new species of Baccharis L. sect. Caulopterae DC.(Asteraceae) from sandy soils and dunes on the coastal plain of Rio Grande do Sul state, Brazil, is presented: Baccharis dunensis A.A.Schneid. & G.Heiden. The new species is described, illustrated and compared to more closely related species. Additionally, B. burchelli Baker is reinstated, new synonyms are proposed for B. burchellii and B. crispa Spreng., and a lectotype is designated for B. regnellii Sch.Bip. ex Baker.

Key words:
Astereae; Baccharis subg. Molina; Compositae; Trimera group

Resumo

Uma nova espécie de Baccharis L. sect. Caulopterae DC. (Asteraceae) dos solos arenosos e dunas da planície costeira do litoral do Rio Grande do Sul, Brasil, é apresentada: Baccharis dunensis A.A. Schneid. & G.Heiden. A nova espécie é descrita, ilustrada e comparada com as espécies mais próximas. Adicionalmente, o binômio B. burchelli Baker é restabelecido, novos sinônimos são propostos para B. burchellii e B. crispa Spreng., e um lectótipo é designado para B. regnellii Sch.Bip. ex Baker.

Palavras-chave:
Astereae; Baccharis subg. Molina; Compositae; grupo Trimera

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Acknowledgements

The authors are grateful to the herbaria curators, to the collectors of the studied specimens, to CAPES and CNPq-PROTAX for the financial support of our studies, to João Iganci for preparing the illustration, to Tarciso Filgueiras for revision of the Latin diagnosis and to the anonymous reviewers for contributions on the improvement of the text.

References

Baker, J.G. 1882. Compositae. III. Asteroideae, Inuloideae. In: Martius, C.F.P. von; Eichler, A. W. & Urban, I. (ed.). Flora brasiliensis München, Wien, Leipzig. Vol. 6. Pp. 1-442.
Barroso, G.M. 1976. Compositae, subtribo Baccharidinae Hoffman. Estudo das espécies ocorrentes no Brasil. Rodriguésia 28: 3-273.
Fielding, R.R. 2001. Baccharis: a genus of the Asteraceae new to Canada. Proceedings of the Nova Scotian Institute of Science 41: 214-215.
Giuliano, D.A. 2001. Classificación infragenérica de las espécies argentinas de Baccharis (Asteraceae, Astereae). Darwiniana 39: 131-154.
IUCN. 2009. IUCN Red list of threatened species. Version 2009.1. Available in <http://www.iucnredlist.org>. Access on 15 November 2009.
» http://www.iucnredlist.org
Müller, J. 2006. Systematics of Baccharis (Compositae-Astereae) in Bolivia, including an overview of the genus. Systematic Botany Monographs 76:1-341.
Nesom, G. & Robinson, H. [2006] 2007. XV. Tribe Astereae Cass. In: Kadereit, J. W. & Jeffrey, C. (eds.). The families and genera of vascular plants. Kubitzki, K. (series ed.). Flowering plants: Eudicots: Asterales. Vol. VIII. Springer, Berlin. Pp. 284-342.

Publication Dates

Publication in this collection
Jan-Mar 2010

History

Received
08 Oct 2009
Accepted
23 Mar 2010

This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

[1] Baker, J.G. 1882. Compositae. III. Asteroideae, Inuloideae. In: Martius, C.F.P. von; Eichler, A. W. & Urban, I. (ed.). Flora brasiliensis München, Wien, Leipzig. Vol. 6. Pp. 1-442.

[2] Barroso, G.M. 1976. Compositae, subtribo Baccharidinae Hoffman. Estudo das espécies ocorrentes no Brasil. Rodriguésia 28: 3-273.

[3] Fielding, R.R. 2001. Baccharis: a genus of the Asteraceae new to Canada. Proceedings of the Nova Scotian Institute of Science 41: 214-215.

[4] Giuliano, D.A. 2001. Classificación infragenérica de las espécies argentinas de Baccharis (Asteraceae, Astereae). Darwiniana 39: 131-154.

[5] IUCN. 2009. IUCN Red list of threatened species. Version 2009.1. Available in <http://www.iucnredlist.org>. Access on 15 November 2009.
» http://www.iucnredlist.org

[6] Müller, J. 2006. Systematics of Baccharis (Compositae-Astereae) in Bolivia, including an overview of the genus. Systematic Botany Monographs 76:1-341.

[7] Nesom, G. & Robinson, H. [2006] 2007. XV. Tribe Astereae Cass. In: Kadereit, J. W. & Jeffrey, C. (eds.). The families and genera of vascular plants. Kubitzki, K. (series ed.). Flowering plants: Eudicots: Asterales. Vol. VIII. Springer, Berlin. Pp. 284-342.

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