Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T19:08:40.815Z Has data issue: false hasContentIssue false
  • English
  • Français

NEW SPECIES AND NEW COMBINATIONS IN THE SOUTH AMERICAN GENUS LESSINGIANTHUS (ASTERACEAE: VERNONIEAE)

Published online by Cambridge University Press:  01 November 2008

M. Dematteis
M. Dematteis*
Affiliation:
Instituto de Botánica del Nordeste (UNNE-CONICET), Casilla de Correo 209, 3400 Corrientes, Argentina. E-mail: [email protected]
Get access

Abstract

Two new species of the South American genus Lessingianthus (Asteraceae: Vernonieae) are described and illustrated. One of these species, Lessingianthus arctatus, bears a resemblance to L. linearis (Spreng.) H.Rob. and L. rosmarinifolius (Less.) H.Rob., but can be separated from them by its almost glabrous phyllaries, solitary heads and longer internodes. The other new taxon, Lessingianthus longicuspis, can be easily separated from L. cataractarum (Hieron.) H.Rob. and L. bardanoides (Less.) H.Rob., and other taxa of the genus, by the combination of petiolate leaves, aristate phyllaries and inflorescence bracts alternate to the heads. Four other taxa previously included in Vernonia are transferred to the genus Lessingianthus.

Keywords

BrazilcerradotaxonomyVernoniaVernonieae
Type
Articles
Information
Edinburgh Journal of Botany , Volume 65 , Issue 3 , November 2008 , pp. 359 - 368
Copyright
Copyright © Trustees of the Royal Botanic Garden Edinburgh 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baker, J. G. (1873). Compositae. I. Vernoniaceae. In: Martius, C. F. P. (ed.) Flora Brasiliensis 6(2): 1–179. Leipzig: Fleischer & Co.Google Scholar
Bremer, K. (1994). Asteraceae: Cladistics and Classification. Portland: Timber Press.Google Scholar
Dematteis, M. (2002). Cytotaxonomic analysis of South American species of Vernonia (Vernonieae: Asteraceae). Bot. J. Linn. Soc. 139: 401–408.CrossRefGoogle Scholar
Dematteis, M. (2006). Two new species of Lessingianthus (Vernonieae, Asteraceae) from the Brazilian highlands. Bot. J. Linn. Soc. 150: 487–493.CrossRefGoogle Scholar
Dematteis, M. (2007). Taxonomic notes on the genus Chrysolaena (Vernonieae, Asteraceae), including a new species endemic to Paraguay. Ann. Bot. Fenn. 44(1): 56–64.Google Scholar
Keeley, S. C. & Jones, S. B. (1979). Distribution of the pollen types in Vernonia (Vernonieae: Asteraceae). Syst. Bot. 4: 195–202.CrossRefGoogle Scholar
Robinson, H. (1988). Studies in the Lepidaploa complex (Vernonieae: Asteraceae). IV. The new genus Lessingianthus. Proc. Biol. Soc. Wash. 100: 929–951.Google Scholar
Robinson, H. (1999). Generic and subtribal classification of American Vernonieae. Smithsonian Contr. Bot. 89: 1–116.CrossRefGoogle Scholar
Robinson, H. (2007). Tribe Vernonieae. In: Kadereit, J. & Jeffrey, C. (eds) The Families and Genera of Vascular Plants, vol. 8, Asterales, pp. 165–192. Berlin: Springer-Verlag.Google Scholar