What are three specialized cells in a daisy???

What are their functions?


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What are three specialized cells in a daisy???
The basic epidermis cells, i.e. the least specialized cells constitute the largest group of dermal cells. They seem either polygonal or elongated in top view. Their walls are often wavy or sinuate. It is unknown, what induces this shape during development, since the explanations given by the existing hypotheses seem insufficient. Elongated epidermis cells can be found at organs or parts of organs that are elongated themselves, like stems, leaf petioles, leaf veins or leaves of monocots. The epidermises of the leaf's upper- and undersurface may have different structures. The shape of the cells, the thickness of the walls as well as the distribution and number of specialized cells (guard cells and trichomes) per area may all vary. Wide varieties of different cell shapes may even exist in species of a single family, e. g. in the Crassulaceae family