The Fabaceae in Northeastern Mexico (Subfamily Caesalpinioideae, Mimosoideae Clade, Tribes Mimoseae, Acacieae, and Ingeae)

Abstract

A synoptic compendium of the legumes of the Mimosoideae clade in northeastern Mexico is presented for the first time, including changes in their botanical nomenclature and retypification of genera. Furthermore, based on new information recently published, the taxonomic limits of several new genera segregated from Acacia (Acaciella, Mariosousa, Senegalia, and Vachellia) and Prosopis (Neltuma and Strombocarpa) are clarified and included. Based on field work, collection of botanical samples over the past 30 years, and reviewing botanical materials in national and international herbaria, we have completed the diversity of legumes of the Mimosoideae clade of northeastern Mexico. Three tribes (Acacieae, Ingeae, and Mimosaeae), 22 genera, 92 species, and 19 infraspecific categories were recorded. Only the genus Painteria is endemic to Mexico. Eighty-eight species are native to Mexico, and four are exotic: Acacia salicina, Neptunia prostrata, Neltuma chilensis and Albizia lebbeck. Twenty-eight species are endemic to Mexico, nine species are endemic to northeastern Mexico, and four species are endemic to only one state in Mexico. The 22 registered genera represent 44% and 65% of the generic flora of the Mimosoideae clade for Mexico and the planet, respectively, while the 92 species registered represent 3% and 18% of the species of the clade Mimosoideae for the planet and Mexico, respectively. According to the new nomenclature of legumes, the number of genera in the Mimosoideae clade in northern Mexico has increased from 19 to 24.

The Fabaceae in northeastern Mexico II (Subfamilies Caesalpinioideae, Cercidoideae, and Detarioideae)

“…The effects of this rich physiographic, climatic and edaphic variability have visible physiognomic effects on the diversity of vegetation types, since in this region several of these are present, among which stand out: xeric scrub, low deciduous forest, evergreen tropical forest, mountain cloud forest, grasslands, oak forest, oak-pine forest, coniferous forest and subalpine meadow [32,75]. Legumes (Fabaceae), as one of the three groups of plants best represented in Mexico (), are distributed in practically all plant communities in northeastern Mexico, sometimes being the predominant and most ecologically important elements (19,75]. So the aim of this study is to know the diversity of legumes of the subfamilies Caesalpinioideae, Cercidoideae and Detarioideae distributed in the different environments of northeastern Mexico.…”

“…As we did in our previous work on this family of plants in northeastern Mexico [19], this study consisted of two main phases, the first was to capture in a database all the genera and species of Fabaceae, subfamilies Caesalpinioideae, Cercidoideae and Detarioideae in the northeastern Mexico present in the scientific literature. The database was expanded with personal collection records of Data Availability Statement: The data presented in this study are available on request from the corresponding author.…”