Taphrina tosquinetii

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    Description

    This is an acomycete fungus that causes large blisters on Alder leaves - on both surfaces. Eventually the blisters become covered in a white bloom as the spore-bearing asci develop on the surface.

    Identification difficulty
    Habitat

    On Alder leaves.

    When to see it

    Spring and summer.

    UK Status

    Common

    VC55 Status

    Fairly common.

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    • David Nicholls
      Nature Alive, Coalville
      12 July 2012
      on Alder - upper leaf surface
    • David Nicholls
      Nature Alive, Coalville
      12 July 2012
      on Alder - upper leaf surface
    • David Nicholls
      Nature Alive, Coalville
      12 July 2012
      on Alder - underside of leaf
    • Graham Calow
      Ullesthorpe Stewardship Farm
      05 September 2012
      on Alder - upper leaf surface
    • Graham Calow
      Ullesthorpe Stewardship Farm
      05 September 2012
      on Alder - underside of leaf
    • Graham Calow
      Ullesthorpe Stewardship Farm
      05 September 2012
      on Alder - upper leaf surface
    • Graham Calow
      Ullesthorpe Stewardship Farm
      05 September 2012
      on Alder - upper leaf surface

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map