I greatly enjoyed the Woodland Day at Stanmer Park. In particular, I found the Bluebell Walk enchanting and recommend anyone who could not get along last Sunday to try to see the bluebells in the next week before they fade too much.

As a teacher, I was a little disturbed to see a couple of bits of misinformation.

One minor one was the spelling of "benifit" (their spelling, not mine.)

A bit more worrying was the information on the (beautifully-presented) wooden information boards that a lichen is a combination of bacteria and fungi.

I have always understood it is the result of green algae and fungi living together.

Lichens are important in being the first life form to colonise bare rocks in many cases.

They are also a very useful indicator of pollution levels in the air. So a knowledge of them is not just an obscure, unimportant bit of science.

I hope this oversight can be corrected by next year.

-Val Cane, Brighton