Abstract:A new rainforest species of Magnolia, from the eastern Selva Zoque of Chiapas, Mexico, is described and illustrated. Magnolia perezfarrerae belongs to section Talauma, subsection Talauma. It differs from M. equatorialis in having shorter leaf blades that are elliptic rather than lanceolate, longer petioles, and much shorter apices of the carpels. Unlike any published Mexican species of subsection Talauma, this new species presents a circumcissile dehiscence with abaxial portions of carpels detaching in large irregular and united many-carpelled masses, a trait shared with several Amazonian Magnolia. The fl owers are used and valued by the Zoque culture for medicinal purposes. Key words: Magnolia equatorialis, Magnolia lacandonica, Magnolia mexicana, Neotropical. Resumen:Se describe e ilustra una nueva especie de Magnolia del oriente de la Selva Zoque de Chiapas, México. Magnolia perezfarrerae pertenece a la sección Talauma, subsección Talauma, difi ere de M. equatorialis por sus láminas foliares de menor tamaño, elípticas en lugar de lanceoladas; pecíolos más largos y ápice carpelar mucho más corto. A diferencia de las especies mexicanas conocidas de la subsección Talauma, las porciones abaxiales de sus numerosos carpelos se desprenden en varias masas grandes e irregulares, característica compartida con varias especies de Magnolia del Amazonas. Las fl ores son usadas y valoradas por la cultura Zoque para propósito medicinal.

Adjunto para su consideración el manuscrito titulado: An amended description for Magnolia arroyoana (Magnoliaceae) and a proposal for the new Stenopetalae group . El presente trabajo ha sometido bajo la modalidad de ARTÍCULO CIENTÍFICO y declaramos que el manuscrito no ha sido publicado total o parcialmente ni ha sido sometido paralelamente a consideración en ningún otro medio impreso o electrónico.

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Three new species from Jalisco, Mexico, are described and illustrated. These species grow in tropical or in tropical and temperate transitional forests. The 3 species belong to Salvia L. subgenus Calosphace (Benth.) Benth. Salvia carreyesii J. G. González is morphologically similar with section Briquetia Epling. It is characterized by the contrasting vegetative morphology between mature and immature individuals, its relatively large and sessile or sub-sessile leaves (the uppermost amplexicaul), glandular-capitate hairs on the floral axis and calyx, and dark violet corollas. The characters of Salvia ibugana J. G. González correspond to those of the species of section Angulatae (Epling) Epling, within which S. ibugana is distinguished by the digitiform papillae disperse on its stems, petioles and floral axis. Salvia ramirezii J. G. González fits well within section Sigmoideae Epling by means of the sigmoid shape of the lower branch of its style. It is morphologically similar to Salvia crucis and S. quercetorum, from which it can be distinguished by the triangular, slightly succulent, shorter, glabrous, lustrous leaves.