ABSTRACT
Was carried out the morphological and anatomical study of the seed coat of Gronovia scandens L., Klaprothia fasciculata (Presl.) Poston & Nowicke, Mentzelia aspera L., and Nasa triphylla (Juss.) Weigend, species belonging to the Loasaceae. The study was carried out with fresh material fresh and herbarium material. The characterization morphological was carried out low microscope estereoscópico. For the characterization histological transverse and longitudinal sections those were obtained which were studied under an light microscope, additionally they were carried out histochemical assays. The micromorphology of the seed coat was observed in a scanninig electronic microscope. They were differences in the size, color and it forms of the seeds, with which it can differ each one of the species easily. In the study of the microsculpturing and the anatomy of the seed coat specific features were also observed that allow to differentiate the four studied species.
Key-words:
Loasaceae; seed coat