It was a beautiful morning so it seemed an ideal time to see the autumn trees at Dawyck Botanic Garden.    This view with the red maple beyond is at the same location as one taken in May when the rhododendrons were flowering.  (Extra) Of interest to me, near the bridge were six stands on which hang pendants of different lichens which were monitoring the effects of microclimates.
A notice states
This scientific experiment is designed to understand the sensitivity of Scotland’s internationally important lichens to climate change.
Identical experiments are placed here in Dawyck Botanic Garden, which has a dry climate with cold winter temperatures and at Benmore Botanic Garden which has a wetter and milder climate.
Three experimental stations within each garden are positioned at different distances away from a stream.  This helps measure the influence of microclimate.
The other extra shows a tree which was carved to represent David Douglas, an eminent gardener, botanist and plant collector and who introduced many species to Britain nearly 200 years ago.