Circinaria hoffmanniana (S. Ekman & Fröberg ex R. Sant.) A. Nordin
Bulletin de la Société Linnéenne de Provence 67: 179 (2016).
Basionym: Aspicilia contorta subsp. hoffmanniana S. Ekman & Fröberg ex R. Sant., Lichens and Lichenicolous Fungi of Sweden and Norway (Lund): 23 (1993).