Please use this identifier to cite or link to this item: http://cicy.repositorioinstitucional.mx/jspui/handle/1003/715
Marsdenia calichicola (Apocynaceae), a narrow endemic, endangered new species from the Mexican Yucatan Peninsula
GERMAN CARNEVALI FERNANDEZ CONCHA
JORGE CARLOS TREJO TORRES
RODRIGO STEFANO DUNO
José Luis Tapia Muñoz
IVON MERCEDES RAMIREZ MORILLO
WILLIAM ROLANDO CETZAL IX
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: http://dx.doi.org/10.11646/phytotaxa.270.2.7
ASCLEPIADOIDEAE
ENDEMISM
IUCN
MARSDENIA SECT. EDULES
MARSDENIAE
Marsdenia (Apocynaceae: Asclepiadoideae, Marsdeniae) is represented by five species in the Mexican Yucatan Peninsula (vs. seven in the whole of the province), one of which is herein proposed as new to science.  The new species, Mardenia calichicola Carnevali & Juárez-Jaimes, is only known from a narrow strip of sub-xerophytic forests over calcareous, rocky soils along the northwestern edge in the Yucatán state of Mexico. Marsdenia calichicola is morphologically similar and likely related to M. gallardoae and M. trivirgulata. Among other characters, it differs from Marsdenia gallardoae by the presence of a corona composed of cushion-like calli (corolla lacking calli in M. gallardoae) whereas M. trivirgulata has a glabrous or glabrescent corolla (vs. pubescent in M. calichicola); additional characters are herein discussed. We provide pertinent iconography to aid in the identification of the new species plus a key to diagnose the three species in the M. trivirgulata complex. The conservation status of the new taxon is assessed against the IUCN criteria as CR. A distribution map and a key to the species of Marsdenia from the Yucatan Peninsula Biotic Province are presented.
17-08-2016
Artículo
Phytotaxa. 270(2), 146–154, 2016
Inglés
Carnevali, G., TREJO-TORRES, J. C., Juarez-Jaimes, V., Duno, R., TAPIA-MUÑOZ, J. L., Ramirez-Morillo, I. M., & Cetzal-Ix, W. (2016). Marsdenia calichicola (Apocynaceae), a narrow endemic, endangered new species from the Mexican Yucatan Peninsula. Phytotaxa, 270(2), 146-154.
BIOLOGÍA Y QUÍMICA
Versión publicada
publishedVersion - Versión publicada
Appears in Collections:Artículos de Investigación Arbitrados

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