SciELO - Scientific Electronic Library Online

vol.26 issue1Interaction of the water regime with nutrients relations in a mangrove ecosystem author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Acta Botanica Brasilica

Print version ISSN 0102-3306


DELBON, Natalia; COSA, María Teresa  and  BERNARDELLO, Gabriel. Exomorphology and anatomy of vegetative organs in Flourensia species (Asteraceae) with phytochemical importance. Acta Bot. Bras. [online]. 2012, vol.26, n.1, pp.2-10. ISSN 0102-3306.

The genus Flourensia DC. is American and comprises 32 species. They are resiniferous shrubs used in folk medicine. As they have potential economic value, its chemical compounds have been characterized and some possible uses identified. In this work, the exomorphology and anatomy of vegetative organs of F. hirta S. F. Blake, F. leptopoda S. F. Blake, F. niederleinii S. F. Blake and F. tortuosa Griseb., endemic species from central Argentina, have been studied. All species are similar in leaf and stem anatomy. Regarding the epidermis, it is possible to differentiate the species according to the stomatal frequency and the presence of trichomes. Finally, the most remarkable differences were found in leaf exomorphology, since there was a large variation in shape and size of blades and petioles. Concerning the secretory structures, trichomes and secretory ducts were found in the leaves and stems of all species, which would be responsible for the production and secretion of the resins.

Keywords : leaf; secretory structures; stem.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License