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A new species endemic to the limestone rock outcrops in the Tehuacán-Cuicatlán Biosphere Reserve of Oaxaca, Mexico is described. Its vegetative and flower morphology place this species in the section Micracanthae. We compare the new species to Agave chiapensis Jacobi and A. mitis Mart., from which it differs in habitat, distribution, leaf thickness, length of inflorescence, size of flower, and the presence of a short floral neck. This brings the total number of taxa in the section Micracanthae to 11; plants in the section occur from Tamaulipas and Nuevo León in northeastern Mexico south to Oaxaca and Chiapas in southern Mexico into adjacent Guatemala.
Se describe una nueva especie endémica de los afloramientos de roca caliza en la Reserva de la Biosfera Tehuacán-Cuicatlán de Oaxaca, México. Su morfología vegetativa y floral ubica a esta especie en la sección Micracanthae, y se la compara con Agave chiapensis y A. mitis, de las cuales difiere en habitat, distribución, grosor de la hoja, longitud de la inflorescencia, tamaño de la flor, y presencia de un cuello floral corto. Esto eleva el número total de taxones en la sección Micracanthae a 11; las plantas de esta sección se encuentran desde Tamaulipas y Nuevo León en el noreste de México hacia Oaxaca y Chiapas en el sur de México, hasta Guatemala.
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