Premise of research. The genus Zamia L.(Zamiaceae), consisting of 79 species, is the most
species-rich and widely distributed cycad genus in the New World and arguably the most …

Abstract Background and Aims Biogeographic transition zones are promising areas to study
processes of biogeographic evolution and its influence on biological groups. The Mexican …

Taxonomic data is essential to advance the discovery and description of biodiversity, as well
as the study of evolutionary processes. Emerging large-scale datasets and new methods of …

Speculations on hybridization among wild cycads are abundant, but empirical evidence of
hybridization in cycad evolution is almost non-existent and the evolutionary consequences …

Cycads (Cycadales) are among the most ancient lineages of extant seed-bearing plants and
are the most threatened plant order on Earth, with circa 75% of the 356 accepted species …

The Ceratozamia miqueliana species complex consists of six closely related species that
exhibit similar gross morphology, but a wide range of leaflet shape from widely obovate in C …

Abstract Background and Aims Cycad is a key lineage to understand the early evolution of
seed plants and their response to past environmental changes. However, tracing the …

Zamia magnifica (Zamiaceae), a new species endemic to Sierra Norte, Oaxaca, Mexico, is
described. Zamia magnifica is characterized by having a rupicolous habit, pendent leaves …

Anatomical descriptions can be effective for solving systematic issues, but these studies are
relatively scarce for cycads. Therefore, we present here a leaflet and cuticle anatomical …

Cycads are considered to be the most threatened plant group on Earth. Thus, the
identification of important biological units for conservation is crucial for their management …