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  2. Gall - Wikipedia

    en.wikipedia.org/wiki/Gall

    Galls (from the Latin galla, 'oak-apple') or cecidia (from the Greek kēkidion, anything gushing out) are a kind of swelling growth on the external tissues of plants. Plant galls are abnormal outgrowths [1] of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria ...

  3. Gauls - Wikipedia

    en.wikipedia.org/wiki/Gauls

    Not to be confused with Gaels or Gaul. The Dying Gaul, Capitoline Museums, Rome. The Gauls ( Latin: Galli; Ancient Greek: Γαλάται, Galátai) were a group of Celtic peoples of mainland Europe in the Iron Age and the Roman period (roughly 5th century BC to 5th century AD). Their homeland was known as Gaul ( Gallia ).

  4. Oak apple - Wikipedia

    en.wikipedia.org/wiki/Oak_apple

    Oak apples on Quercus robur leaf Oak galls on a Pyrenean oak (Quercus pyrenaica) in León, Spain. An oak apple on a tree in Worcestershire, England. Oak apple or oak gall is the common name for a large, round, vaguely apple-like gall commonly found on many species of oak.

  5. Galling - Wikipedia

    en.wikipedia.org/wiki/Galling

    Galling is a form of wear caused by adhesion between sliding surfaces. When a material galls, some of it is pulled with the contacting surface, especially if there is a large amount of force compressing the surfaces together. [1] Galling is caused by a combination of friction and adhesion between the surfaces, followed by slipping and tearing ...

  6. Cecidomyiidae - Wikipedia

    en.wikipedia.org/wiki/Cecidomyiidae

    Cecidomyiidae. Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects usually only 2–3 mm (0.079–0.118 in) in length; many are less than 1 mm (0.039 in) long.

  7. Eriophyidae - Wikipedia

    en.wikipedia.org/wiki/Eriophyidae

    Aceria fraxini, galls. Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues and hence known as gall mites. About 3,600 species have been described, but this is probably less than 10% of the actual number existing in this poorly researched family.

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