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  • 2 weeks later...
Posted
Not technically a gall.

But a rust.

 

Pear Rust

 

Caused by the fungi - Gymnosporangium sabinae

 

Has gall like protrusions under the leaf.

 

Fruit can be affected, and can also lead to branch canker.

 

.

 

 

 

Couple of weeks on.

This set shows the spore fruit bodies, emerging from the galls on the underside of the leaves.

 

 

.

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IMG_6580.jpg.cc2642a7e93972cb7c3618257349d2e4.jpg

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  • 5 months later...
Posted

Bit of an interesting aside around the use of oak galls..............

 

 

have been contacted by a lady who is researching early use of ink.

 

Apparantly the Ink used to sign the Magna Carta, was from a solution made from Oak galls - called 'Iron gall Ink'

 

She's asked me to gather up a supply of old galls so she can carry out the process (which involves adding ferrous sulfate to the tannic acid found inside the galls.)

 

This produced a medium that could not be washed off & was difficult to erase, which was handy for such an important and fundamental document as the 'Carta'

 

Not sure these are in good enough condition, but will be interesting to hear how she gets on.

 

 

.

IMG_1865.jpg.415cf0f9f13f1d7d6e85de508915d6d9.jpg

  • 1 month later...
Posted
If this doesnt inspire you to look at the galls a little closer nothing will

 

 

Fascinating :thumbup1:. Amazing photography and narrated by one of my all time heros. Great lil' find :biggrin:

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