This model, enlarged 400X life size, shows a transverse and longitudinal section through a dicot stem. Illustrates a dicot vascular structure and cambium ring. Shows cuticles, epidermis, hypodermis, cortex, mucilage canal, endodermis, sclerenchymatous, pericycle, parenchymatous pericycle, phloem, intrafascicular cambium, protoxylem, ,metaxylem, medullary ray, pith etc. Model mounted on base. All parts are numbered and identified on the accompanying key-card.