The deciduous forest in a stream of lava in the center of Veracruz: vascular flora flower list

Currently, the tropical dry forest found on rock formations originating from volcanic activity are the best preserved, but also the least studied in the State of Veracruz, Mexico. We recorded 104 families comprising 394 genera and 666 species and subspecies of vascular plants. These latter taxa were classified in the following growth form categories: 88 trees, 126 shrubs, 342 herbs, 80 vines and 30 epiphytes. The richest families, considering the recorded species, were Fabaceae, Poaceae, Asteraceae and Euphorbiaceae. The presence of a rich succulent component in the tropical dry forest flora was noticeable. It is conformed by 204 species and subspecies, corresponding to 30.4% of the total for such vascular taxa recorded in the study area. The highest ichness of succulent species was found in the most diverse families, such as Euphorbiaceae, Orchidaceae, Cactaceae, and Bromeliaceae.