Farina glands of primula flower

Farina glands of primula flower

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.

Caption: False colour scanning electron micrograph of a farina gland on the surface of a sepal (calyx) of the primula flower, Primula malacoides. The plant, native to China, is noted for the covering of stalked glands, which secrete a floury white substance called farina. These cover the flowering stalk, buds, petals & sepals . The waxy secretion is a water repellant, protecting the flower from condensation of moisture & cold temperatures. The sepals form the tough outer whorl of the flower, surrounding the more delicate petals, or corolla. Magnification: X 115 at 35mm, X 800 at 8x10-inch size. Original is bw print b765/031

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Keywords: botany, farina, farina gland, flower, flowering part, gland, nature, parts, plant, plants, primula, primula malacoides, sem, sepal, stoma, wax surface

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