A corm is a thickened, fleshy, underground stem base that serves as a storage organ for plants. Unlike bulbs, which are composed of fleshy leaves, corms consist of solid stem tissue. They are typically covered by papery, scale-like leaves and are used by plants to survive adverse environmental conditions.

Anatomy is the specific branch of biology concerned with the structural organization of living things. It involves the identification and description of internal body structures, organs, and systems, often studied through dissection or imaging techniques to understand how these components are arranged and function within the organism.

The epidermis is the outermost layer of cells covering the entire primary plant body, including leaves, stems, and roots. It serves as a protective barrier against water loss, mechanical injury, and pathogen invasion. While it is present on all these parts, it is most characteristically defined as the protective covering of the entire plant body.

In plant biology, the plant body is divided into vegetative and reproductive organs. Vegetative organs include roots, stems, and leaves, which are responsible for growth, nutrient absorption, and photosynthesis. In contrast, reproductive organs, such as flowers, fruits, and seeds, are specifically involved in the sexual reproduction of the plant.

Epidermal cells in plants secrete a waxy, hydrophobic substance called cutin. This forms the cuticle, a protective layer on the outer surface of leaves and stems that prevents excessive transpiration and provides a barrier against pathogens.

Lenticels are specialized structures found in the periderm of woody stems and roots. They consist of loosely packed parenchyma cells that create gaps in the bark, allowing oxygen to enter and carbon dioxide to exit the plant tissues. While their primary function is gas exchange, they also facilitate a small amount of water vapor loss, contributing to the overall transpiration process in woody plants.

The primary cell wall is the initial layer deposited by a plant cell during its growth phase. It is primarily composed of cellulose microfibrils embedded in a matrix of hemicellulose and pectin. This structure provides the necessary tensile strength and flexibility for the cell to expand during development.

The pericycle is a layer of plant cells located between the endodermis and the vascular tissue. It is responsible for the initiation of lateral roots and contributes to secondary growth in dicotyledonous plants, serving as a meristematic tissue.

Adipose tissue is a specialized form of loose connective tissue composed primarily of adipocytes. It serves as a major energy reservoir, provides thermal insulation, and acts as a protective cushion for vital organs such as the kidneys, while also being stored in subcutaneous layers beneath the skin.

Rhizomes are modified underground stems that grow horizontally beneath the soil surface. They typically feature nodes and internodes, with scale leaves at the nodes, and serve as organs for vegetative reproduction and storage of nutrients in many perennial plant species.