Described as a “seasoned academic leader,” longtime higher-education official Jan Ignash was named Thursday as interim chancellor of Florida’s state university system. The system’s Board of Governors approved the appointment with little discussion, as Chancellor Frank Brogan prepares to leave his post Sept. 30 to begin a similar job in Pennsylvania. […] The Board of Governor’s meeting at New College of Florida also served as a platform for university-system leaders to offer a farewell to Brogan, a gregarious, wise-cracking fixture in state government and politics for much of the past two decades.