Abstract

GARCIA, Marina; JAUREGUI, Damelis  and  MEDINA, Ernesto. Anatomical adaptations in leaves of angiosperm species ocurring in the coastal zone of Falcon State (Venezuela). Acta Bot. Venez. [online]. 2008, vol.31, n.1, pp.291-306. ISSN 0084-5906.

The leaf anatomy of 15 species of vascular plants occurring in coastal zones of the Falcon State (Venezuela) was studied to evaluate the potential adaptive value of leaf anatomical features to the saline environment. Transverse sections and macerates of leaf material preserved in FAA were prepared for microscopic analysis. Results show that the  development of water storing tissue in the mesophyll and/or epidermal cells is the main characteristic associated with the saline habitat in these species. Other characteristics of potential adaptive value are: presence of trichomes, stomata protected by papillae, crystals in mesophyll cells, secretory tissues, and Kranz anatomy.

Keywords : Coastal species; halophytes; leaf anatomy; succulence; Venezuela.