Nuevas especies de Viguiera (Compositae, Heliantheae) del estado de Durango, México
DOI:
https://doi.org/10.21829/abm53.2000.861Abstract
Viguiera oligantha and V. inegii, from the state of Durango, are described and illustrated. The two new species are endemic to northeastern Durango and occur sympatrically. Both are canescent shrubs. Viguiera oligantha represents an unusual condition in the genus because of its highly reduced heads with 1-2 disc flowers and 0-2 ray flowers, the heads arranged in corymbiform cymes. We consider V. oligantha and V. inegii to be sister species possibly derived from V. greggii (A. Gray) S. F. Blake. They differ from V. greggii in having predominantly alternate leaves with impressed nerves as well as smaller heads and flowers. The new species are related to members of the series Brevifoliae, although it is necessary to reevaluate the circumscription of the series to incorporate these species. A key is presented for the identification of the components of the emended series Brevifoliae and a list of examined specimens of the remaining species of the series is included.
Downloads
References
Blake, S. F. 1918. A revision of the genus Viguiera. Contr. Gray Herb. 54: 1-205. DOI: https://doi.org/10.5962/p.336015
Bravo-Hollis, H. y H. Sánchez Mejorada. 1991. Las cactáceas de México. Vol. III. Universidad Nacional Autónoma de México. México, D.F. 643 pp.
Henrickson, J. y R. A. Hilsenbeck. 1979. New taxa and combinations in Siphonoglossa (Acanthaceae). Brittonia 31(3): 373-378. DOI: https://doi.org/10.2307/2806130
Iltis, H. H. 1999. Setchellanthaceae (Capparales), a new family for a relictual, glucosinolate-producing endemic of the Mexican deserts. Taxon 48: 257-288. DOI: https://doi.org/10.2307/1224431
Rzedowski, J. 1972. Contribuciones a la fitogeografía florística e histórica de México. III. Algunas tendencias en la distribución geográfica y ecológica de las Compositae mexicanas. Ciencia, Méx. 27: 123-132.
Rzedowski, J. y G. Calderón de Rzedowski. 1999. Hallazgo de plantas mexicanas del género Cotinus (Anacardiaceae) con características de reliquias del Terciario. Acta Bot. Mex. 47: 23-30. DOI: https://doi.org/10.21829/abm47.1999.822
Turner, B. L. 1977. Henricksonia (Asteraceae-Coreopsidinae), a newly discovered genus with a paleaceous pappus from North-central México. Amer. J. Bot. 64(1): 78-80. DOI: https://doi.org/10.1002/j.1537-2197.1977.tb07607.x
Schilling, E. E. y J. L. Panero. 1988. Flavonoids of Viguiera series Brevifoliae. Biochem. Syst. Ecol. 16(4): 417-418. DOI: https://doi.org/10.1016/0305-1978(88)90036-1
Villarreal, J. A. 1992. Dos nuevos taxa del género Mimosa (Leguminosae: Mimosoideae) para el norte de México. Acta Bot. Mex. 20: 46. DOI: https://doi.org/10.21829/abm20.1992.656
Downloads
Published
How to Cite
-
Abstract1322
-
PDF (Español)407
Issue
Section
License
Copyright (c) 2016 Acta Botanica Mexicana
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish in this journal accept the following conditions:
In accordance with copyright legislation, Acta Botanica Mexicana recognizes and respects the moral rights of authors, as well as the ownership of the patrimonial right, which will be assigned to the journal for its dissemination in open access. Acta Botanica Mexicana does not charge authors for sending and processing articles for publication.
All the texts published by Acta Botanica Mexicana - without exception- are distributed under the Creative Commons 4.0 Attribution-Non Commercial License (CC BY-NC 4.0 International), which allows third parties to use what is published whenever they mention the authorship of the work and the first publication in this journal.
The authors can make other independent and additional contractual agreements for the non-exclusive distribution of the version of the article published in Acta Botanica Mexicana (for example, include it in an institutional repository or publish it in a book) as long as they clearly indicate that the work was published for the first time in Acta Botanica Mexicana
As a consequence, the copyeditors will request you, together with the galley review, to issue your Letter-Transfer of Ownership of Copyright form of the first publication duly completed and signed by the author(s). This letter should be sent by email in pdf file to the email: acta.botanica@inecol.mx (Letter-Transfer of Ownership of Copyright).
