Gunnar Bror Fritiof Degelius

Swedish botanist and lichenologist (1903-1993).

Gunnar Bror Fritiof Degelius (né Nilsson until 1932; 27 January 1903 – 22 July 1993) was a Swedish lichenologist. Between the publications of his first and final scientific papers, Degelius had a 70-year-long research career. While he was best known for his expertise on the lichen genus Collema, he also wrote important papers on lichen biology and ecology, floristic studies of the Nordic countries and various other areas around the world, and lichen succession. Degelius described 124 new taxa (mostly species), and published about 130 scientific papers. In 1992 he was one of the first to be awa