For over sixty years Mohr’s Plant Life of Alabama (1901) has been the most complete single catalogue of the State flora. R. M. Harper has made more contributions toward our knowledge of the Alabama flora than any other individual since Mohr. Among Harper’s numerous publications is a catalogue of the woody plants of Alabama (1928), a monograph on the forests of Alabama (1943), and a report on Alabama weeds (1944). These publications contain references about the Alabama flora in earlier years.