SciELO - Scientific Electronic Library Online

vol.80 issue3Avifauna of Campo Morado, Guerrero, MexicoDiversity and structure of periphyton and metaphyton diatom communities in a tropical wetland in Mexico author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Revista mexicana de biodiversidad

On-line version ISSN 2007-8706Print version ISSN 1870-3453


NOGUERA-SAVELLI, Eliana; JAUREGUI, Damelis  and  RUIZ-ZAPATA, Thirza. Indument characterization of nine Loasaceae species from Venezuela. Rev. Mex. Biodiv. [online]. 2009, vol.80, n.3, pp.751-762. ISSN 2007-8706.

In this work the epidermal indumentum observed in different organs of 9 species of Loasaceae from Venezuela were characterized, emphasizing their type and location on the plant to establish their possible taxonomic significance. The indumentum was studied using optical and scanning electron microscopy. Two classes of indumentum were observed: trichomes and emergences. The trichomes were classified as uni- and multicellular, non-glandular trichomes, and multicellular glandular trichomes. The conical and uncinate glochidiate trichomes were common in all the species studied. Nasa was the genus with the greatest trichomes diversity. The occurrence of dendritic trichomes is reported for the first time, exclusively in Nasa venezuelensis. Leaves and ovaries are the organs with the greatest variety of appendices. Gronovia scandens is the only species with emergences, which are restricted to the stems. The morphology of the epidermal appendices is a character with diagnostic value at the subfamily level, which is demonstrated in the key.

Keywords : emergences; Gronovia; Klaprothia; Mentzelia; Nasa; trichomes.

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


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