I think it possible that the extinction of a species may interest you. The Macartney Rose, of which I have a tree, has all over England simultaneously ceased to produce any fructifying buds for grafting or seed-vessels after the Rose.2 Finding my own dying out, I tried in various places, with the same result.
Please cite as “DCP-LETT-10070F,” in Ɛpsilon: The Charles Darwin Collection accessed on