Abstract: Colares Marta N.; Santiago M. Martínez Alonso; Etile Spegazzini; Marcelo P. Hernández; Vanesa G. Perrotta; María C. Novoa; Ana M. Arambarri. 2017. “Anatomy and Histochemistry of the Underground Organs of Climbing Medicinal Plants from the Shore of Rio de la Plata (Argentina)”. Lilloa 54 (2). The aim of this paper was to characterize the his- tological, structural and histochemical attributes of rhizomes and roots in order to facilitate the identification of species from whole or fragmented material. Fresh material, collected in the area of study, and herbarium specimens (LPAG) were analyzed. For the anatomical preparations we proceeded with usual techniques for optical microscopy. Histochemical tests to recognize starch, mucilage, lipophilic substances, and tannins were performed. The main micrographic features were: cell shapes and cell wall thickenings of the rhizodermis and exo- dermis; the development of the peridermis; peculiarities of the cortical parenchyma and the stele; the thickening degree of the cell walls of cortical cells adjacent to the endodermis and the endodermis; the presence of secretory reservoirs and crystal types. Comparative tables with histochemical results and diacritic keys using micrographic characters from rhizome and roots were generated as a tool for quality control
Keywords: T issue structure, chemistr y, climbing plants, r hizomes, roots, scandent plants