%0 Journal Article
%T Laticifer systems in Mandevilla illustris and M. velutina apocynaceae
%A Beatriz Appezzato-Da-Gloria
%A Maria E. Maranh£¿o Estelita
%J Acta Societatis Botanicorum Poloniae
%D 1997
%I Polish Botanical Society
%R 10.5586/asbp.1997.035
%X Two Apocynaceae species from savanna (Cerrado) area of Sao Paulo State, Brazil were studied. In both Mandevilla species examined, the laticifer systems are of non-articulated branched type, characteristic of the family. In vegetative organs reported was the occurrence of a primary laticifer system of which the cells were differentiated in the embryo. However, additional laticifer cells were always produced during the growth of the shoot apex. A secondary laticiferous system produced by the cells of vascular cambium was identified in the tuberous root and in the stem. A proposed discussion on this apparently unique record in Apocynaceae was arisen to evaluate the main distinction between articulated and non-articulated laticifers.
%K Non-articulated laticifer
%K Mandevilla
%K Apocynaceae
%U http://pbsociety.org.pl/journals/index.php/asbp/article/view/887