Monday, 5 November 2007

Things you learn


On Thursday I took part in a tour of Jubilee Park with the Friends of Jubilee Park led by an arboriculturist who pointed out the different types of trees in the park and their characteristics. The Friends of Jubilee Park are aiming to create paths around the park with the help of the arboriculturist highlighting the different trees there.

One thing I did learn was that the black spots on the sycamore leaf - see picture - would not have occurred when the air was dirtier in previous centuries because the sulphur that was present in those days would have eradicated the spots. So because the air today is much cleaner the sycamore leaves are full of black spots.
Fascinating isn't it?

No comments: