Aceria pseudoplatani causes the sycamore felt gall that is found on the leaves of sycamores (Acer pseudoplatanus) or Norway maple (Acer platanoides),[3] and is caused by an acarine gall-mite.

Aceria pseudoplatani
Underside of sycamore leaf with 'felt' gall patches
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Family: Eriophyidae
Genus: Aceria
Species:
A. pseudoplatani
Binomial name
Aceria pseudoplatani
Corti, 1905[1]
Synonyms

Eriophyes pseudoplatani[2]

Appearance

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The gall forms a bulge on the upper epidermis, where the pigment colour is usually light yellow to start with and brown later on in the year. The appearance on the lower epidermis is a concavity with cream- or white- coloured felt-like mat that later turns brown.[2][4] The bulge is due to the erinae, or hairs, being wider at their top. In purple-leaved varieties of the sycamore, the patches are pink.[3] The size of the felt-like patches is variable, and they may appear from late spring onwards.[5]

Distribution

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The sycamore felt gall is quite common, is widespread throughout the United Kingdom[6] and is also recorded in Poland, Belgium, and Germany.[7]

References

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Notes;

  1. ^ European Environment Agency Retrieved : 2013-07-05
  2. ^ a b Hancy, Page 83
  3. ^ a b Plant Galls Archived 2013-10-29 at the Wayback Machine Retrieved : 2013-07-05
  4. ^ Redfern, Page 274
  5. ^ Darlington, Page 125
  6. ^ Naturespot Retrieved : 2013-07-05
  7. ^ Encyclopedia of Life Retrieved : 2013-07-05

Sources;

  • Darlington, Arnold (1975). Plant Galls in Colour. Poole : Blandford Press. ISBN 0-7137-0748-8.
  • Hancy, Rex (2000). The Study of Plant Galls in Norfolk. The Norfolk & Norwich Naturalists' Society.
  • Redfern, Margaret & Shirley, Peter (2002). British Plant Galls. Identification of Galls on Plants and Fungi. Shrewsbury : FSC Publications. ISBN 1-85153-214-5.
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