I see that Oak trees top the wildlife list - but we don't have an Oak in the park. Perhaps this is because the Victorians preferred exotic trees. We could campaign for an Oak tree next time one is planted.
An interesting list, Des. Another excellent website relating to this subject is that of the Database of British Insects and their Foodplants (DBIF): www.brc.ac.uk/dbif. I don't know how to make a direct link from this comment to the DBIFwebsite. (Perhaps you could do this?)
That's magic Des! You'll have to tell me how to do that.
PS. A pity that the Offland Woodland and Wildlife Trust website you have linked to has to run an advert at the top of the lichen page for Moss, Algae and Lichen killers!
Lichens: 6 minutes clip from Gardeners World.
Nick Bailey explores the wonderful world of lichens with the help of lichenologist, Mark Powell. You find them in graveyards, in gardens growing on walls and old trees. They’re absolutely everywhere, but what exactly are they?
25 March 2017 http://www.bbc.co.uk/programmes/p04xwq41