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| Stems Some Learning Goals External Form of a Woody Twig Origin and Development of Stems Tissue Patterns in Stems Steles Herbaceous Dicotyledonous Stems Woody Dicotyledonous Stems Monocotyledonous Stems Specialized Stems Rhizomes Runners and Stolons Tubers Bulbs Corms Cladophylls Other Specialized Stems Wood and Its Uses Properties of Wood Summary Review Questions Discussion Questions Additional Reading Learning Online | ||