Estudio Anatómico de Baccharis grisebachii

HADAD, M.; TAPIA, A.; FERESIN, G. E.; GATTUSO, M.; GATTUSO S.

Córdoba

Jornada; I Reunión Conjunta de Sociedades de Biología de la República Argentina.; 2007

Sociedad Argentina de Biología, Sociedad de Biología de Córdoba, Sociedad de Biología de Cuyo. Sociedad de Biología de Rosario. Asociación de Biología de Tucumán

The objetive of the present work is to accomplish an upgrade of Baccharis grisebachii Hieron, scientific names, synonyms, and common names, to provide a brief description of the plant and principally to undertake the study of the internal anatomy of the vegetative organs. This work will therefore provide micrographic reference standars, useful for quality controls of the vegetal. The anatomical study was performed on leaves, petioles, stems and roots, killed and fixed in F.A.A. solution. Samples for the histological studies were collected in San Juan, Argentine. The adaxial epidermis presents isodiametric cell. The abaxial epidermis presents anticline undulate and stomata are anomocytic. Stomata at the same level o slightly rose over epidermis cell. Both epidermis present trichomes non glandular and glandular. Dorsiventral mesophile with 4-5 palisade parenchyma layers. Spongy parenchyma with 3-4 cells with intercellular sapaces. The petiole presents a flat-convex contour. Adult stems evidence a secondary structure of conuctive tisue, without peridermis. A de-arched root structure is initially present, show a superficial suber when maturing. The natural drug, whether complete or fragmented, is identified by means of structural characteres, in order to provide micrographic reference standards, useful for quality controls of the crude drug  stage.