False-col sem of a barb on goosegrass

False-col sem of a barb on goosegrass

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.

Caption: False colour scanning electron micrograph showing a barb on the surface of a hooked fruit of cleavers or goosegrass, Galium aparine, grasping a strand of Shetland wool. Commonly known as a bur, the fruit contains a single seed, which is dispersed by means of numerous barbs on the surface. The barbs attach to animal fur or human clothing & are transported for some distance before being removed. The fruit may also pass undamaged through the digestive system of some animals. The synthetic material used in the clothing industry as a fastener, is based on the same principle as the hooked fruit. Magnification: X86 at 35mm size. Original is BW print b790/011.

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Keywords: barbs, botany, bur, cleaver, fruit, galium aparine, goosegrass, hooked, nature, part, parts, plant, plants, reproduction, reproductive, seed, structure, velcro

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