Paychex, Inc. (NasdaqGS:PAYX) is open to merger talks with M&T Bank Corporation (NYSE:MTB). Billionaire B. Thomas Golisano, the founder and chairman of Paychex, the Rochester area firm valued at more than $25 billion, is open to merger talks with Buffalo based M&T Bank, whose market capitalization stands around $28 billion, a source familiar with his thinking tells The Chronicle.