| Wolf's Bane (leaf) (Aconitum napellus) L., Ranunculaceae.Epidermal cells (upper and lower) tabular with wavy vertical walls; stomata on lower surface only; upper cells larger and vertical walls less wavy; trichromes simple, single celled with warty markings. Few comparatively thin walled, nearly colorless, very porous, stone cells. Pollen grains oval.
Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. [1]
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