Abstract
Mexico is the second center of diversity for Jaltomata (Solanaceae), and new species, along with their range of variation, are still being discovered. In this context, Jaltomata saxatilisis is presented and illustrated as a new species described from the Volcanic Trans-Mexican Belt. This new taxon is found in the pine-oak forests of Puebla and Veracruz, growing among rocks near waterfalls. It can be distinguished from similar species by its combination of purple to black or dark green stems with purple protuberances, elliptic to deltoid leaves with angular-toothed margins, purple petioles, a green calyx with the midvein purple to black at flowering, turning light brown in fruit, and a style that is curved at the apex. A preliminary assessment of conservation status is provided based on the criterion B of the IUCN Red List guidelines. Additionally, a detailed description, a comparison table, and a dichotomous key for all Jaltomata species found in Mexico are also provided. Furthermore, a comparison is made with Mexican specimens cataloged as Saracha.
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