A new species of Romanschulzia (Brassicaceae) from the state of Guerrero, Mexico

Authors

  • Rubí Bustamante Universidad Nacional Autónoma de México
  • Rosa María Fonseca Universidad Nacional Autónoma de México

DOI:

https://doi.org/10.21829/abm87.2009.1080

Keywords:

Brassicaceae, Guerrero, Mexico, Romanschulzia

Abstract

Romanschulzia guerrerensis, a new species from the State of Guerrero (Mexico), is described and illustrated. The new species resembles R. apetala, R. subclavata and R. rzedowskii in having apetalous flowers, but differs from the first two by having free instead of connate sepals and sessile instead of stipitate fruits. It resembles R. rzedowskii in the having free sepals, small anthers, and sessile, terete fruits, but differs in the erect-ascending vs. reflexed fruits and fruiting pedicels. It grows in a temperate and humid zone near cerro Teotepec in Guerrero. A key to the four species and a table comparing their various morphological characters are provided.

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Author Biographies

Rubí Bustamante,

Universidad Nacional Autónoma de México

Facultad de Ciencias, Laboratorio de Plantas Vasculares

Rosa María Fonseca,

Universidad Nacional Autónoma de México

Facultad de Ciencias, Laboratorio de Plantas Vasculares

References

Al-Shehbaz, I. A. y H. H. Iltis. 1993. Romanschulzia mexicana (Brassicaceae), a remarkable new species from Guerrero, Mexico. Novon 3: 96-98. DOI: https://doi.org/10.2307/3391514

Al-Shehbaz, I. A., M. A. Beilstein y E. A. Kellogg. 2006. Systematics and phylogeny of the Brassicaceae (Cruciferae): an overview. Plant Syst. Evol. 259: 89-120. DOI: https://doi.org/10.1007/s00606-006-0415-z

Bailey, C. D., I. A. Al-Shehbaz y G. Rajanikanth. 2007. Generic limits in tribe Halimolobeae and description of the new genus Exhalimolobos (Brassicaceae). Syst. Bot. 32(1): 140-156. DOI: https://doi.org/10.1600/036364407780360166

Diego-Pérez, N., S. Peralta-Gómez y B. Ludlow-Wiechers. 2001. El Jilguero. Bosque mesófilo de montaña. In: Diego-Pérez, N. y R. M. Fonseca (eds.). Estudios florísticos en Guerrero. No. 11. Facultad de Ciencias. Universidad Nacional Autónoma de México. México, D.F. 42 pp.

Diego-Pérez, N. y G. Calderón de Rzedowski. 2004. Un nuevo género de Cruciferae (Brassicaceae) del estado de Guerrero, México. Acta Bot. Mex. 68: 73-79. DOI: https://doi.org/10.21829/abm68.2004.980

Fonseca, R. M. 2001. Carrizal de Bravos. Bosque mesófilo de montaña. In: Diego-Pérez, N. y R. M. Fonseca (eds.). Estudios florísticos en Guerrero. No. 12. Facultad de Ciencias. Universidad Nacional Autónoma de México. México, D.F. 41 pp.

Lozada-Pérez, L., M. E. León, J. Rojas y R. de Santiago. 2003. Bosque mesófilo de montaña en El Molote. In: Diego-Pérez, N. y R. M. Fonseca (eds.). Estudios florísticos en Guerrero. No. 13. Facultad de Ciencias. Universidad Nacional Autónoma de México. México, D.F. 35 pp.

Velázquez, E. y E. Domínguez. 2003. Cerro Teotepec. In: Diego-Pérez, N. y R. M. Fonseca (eds.). Estudios florísticos en Guerrero. No. 15. Facultad de Ciencias. Universidad Nacional Autónoma de México. México, D.F. 37 pp.

Rollins, R. C. 1993. The Cruciferae of continental North America. Stanford University Press. Stanford, California. 976 pp.

Rzedowski, G. C. de, J. Rzedowski y colaboradores. 2001. Flora fanerogámica del Valle de México. 2a. ed., Instituto de Ecología, A. C. y Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, Pátzcuaro (Michoacán). 1406 pp.

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Published

2009-04-01

How to Cite

Bustamante, R., & Fonseca, R. M. (2009). A new species of Romanschulzia (Brassicaceae) from the state of Guerrero, Mexico. Acta Botanica Mexicana, (87), 23–29. https://doi.org/10.21829/abm87.2009.1080
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Issue

No. 87 (2009)

Section

Research article

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