Three additions to the phanerogamic flora of Mexico

Authors

  • Jerzy Rzedowski Instituto de Ecología, Centro Regional del Bajío
  • Graciela Calderon de Rzedowski Instituto de Ecología, Centro Regional del Bajío

DOI:

https://doi.org/10.21829/abm32.1995.741

Keywords:

Flora del Bajío, Geniostemon rotundifolius, Stachys turneri, Vernonia solorzanoana

Abstract

Geniostemon rotundifolius (Gentianaceae), from the state of Querétaro, Stachys turneri (Labiatae), from the state of Guanajuato, and Vernonia solorzanoana (Compositae, Vernonieae), from the state of Michoacán, are described as new species. The first taxon differs from all known species of Geniostemon in its suborbicular, petiolate and trinerved leaves as well as in its purplish-brown anthers. The second species presents a so far unknown combination of the following characters: wooly stems and leaves, purple corollas with tubes ca. 1 cm long and apically pubescent ovary. The third one is similar to Vernonia baadii (McVaugh) S. B. Jones, but can be distinguished in being a much more pubescent plant, in its stramineous phyllaries and in the inflorescences with narrower leaves.

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References

Epling, C. 1934. Preliminary revision of American Stachys. Repert. Spec. Nov. Beih. 80: 1-75.

García López, E. 1990. Las compuestas silvestres del Valle de Morelia, Michoacán, México. Tesis. Escuela de Biología. Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mich. 247 pp.

Gleason, H. A. 1922. Vernonieae. North Amer. Flora 33: 47-110.

Jones, S. B., Jr. 1973. Revision of Vernonia section Eremosis (Compositae) in North America. Brittonia 25: 86-115. DOI: https://doi.org/10.2307/2805929

McVaugh, R. 1984. Compositae. Flora Novo-Galiciana 12: 1-1157.

Medina, C. y L. S. Rodríguez. 1993. Estudio florístico de la cuenca el Río Chiquito de Morelia, Michoacán, México. Flora del Bajío y de Regiones Adyacentes. Fascículo complementario IV. Instituto de Ecología. Pátzcuaro, Mich. 71 pp.

Turner, B. L. 1994a. Taxonomic review of Geniostemon (Gentianaceae). Phytologia 76: 8-13. DOI: https://doi.org/10.5962/bhl.part.9962

Turner, B. L. 1994b. Synopsis of Mexican and Central American species of Stachys (Lamiaceae). Phytologia 77: 338-377. DOI: https://doi.org/10.5962/bhl.part.5571

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Published

1995-07-01

How to Cite

Rzedowski, J., & Calderon de Rzedowski, G. (1995). Three additions to the phanerogamic flora of Mexico. Acta Botanica Mexicana, (32), 1–10. https://doi.org/10.21829/abm32.1995.741
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