Leaf Spots?

Description:

I picked 5 leaves from what I think was the same Rhododendron plant (probably R. ponticum). At the time of uploading these images the google satellite image shows a patch of pink where I think the Rhododendron was growing indicating that it's probably quite an old plant. They only flower when they're 10-20 years old if I'm remembering right. Here's a link with some other Rhododendron diseases: http://apps.rhs.org.uk/advicesearch/prof...

Notes:

cu