Formulate an answer to this elaborate question: Peter Collinson (January 1694 11 August 1768) was a Fellow of the Royal Society, an avid gardener, and the middleman for an international exchange of scientific ideas in mid-18th century London, best known for his horticultural friendship with John Bartram, was an early American botanist, horticulturist and explorer, that died on which date?
A:
September 22, 1777