Basionym Name:Physcia ulothrix subsp. pityrophylla Nyl. ex Norrl., Meddn Soc. Fauna Flora fenn. 1: 20 (1876)
Homotypic synonyms:Physcia constipata subsp. pityrophylla (Nyl. ex Norrl.) Räsänen, Ann. bot. Soc. Zool.-Bot. fenn. Vanamo 12(no. 1): 98 (1939)