Synonymy:
Cenomyce floerkeana Fr., Sched. Crit. Lich. Suec., Fasc. 1-4: 18 (1824)
Patellaria floerkeana (Fr.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 416 (1831)
Cladonia bellidiflora var. floerkeana (Fr.) Schaer., Lich. helv. spicil. 6: 287 (1833)
Cladonia macilenta var. floerkeana (Fr.) M. Choisy, Bull. mens. Soc. linn. Soc. Bot. Lyon 20: 131 (1951)
Cladonia macilenta subsp. floerkeana (Fr.) R. Sant., Lichens and Lichenicolous Fungi of Sweden and Norway (Lund): 66 (1993)
Cladonia macilenta subsp. floerkeana (Fr.) V. Wirth, Stuttg. Beitr. Naturk., Ser. A (Biol.) 517: 62 (1994)

Cenomyce carcata Ach., Lich. Univ.: 568 (1810)
Cenomyce bacillaris f. carcata (Ach.) Ach., Syn. meth. lich. (Lund): 266 (1814)
Cladonia macilenta var. carcata (Ach.) Nyl., Not. Sällsk. Fauna et Fl. Fenn. Förh., Ny Ser. 5: 62 (1861)
Cladonia digitata f. carcata (Ach.) Leight., Lich.-Fl. Great Brit. Irel. Chann. Isl.: 70 (1871)
Cladonia floerkeana var. carcata (Ach.) Vain., Acta Soc. Fauna Flora fenn. 4(no. 1): 80 (1887)
Cladonia bacillaris var. carcata (Ach.) Nyl., Lich. Ins. Guin.: 8 (1889)
Cladonia carcata (Ach.) Nyl., Acta Soc. Sci. fenn. 26(no. 10): 6 (1900)
Cladonia macilenta f. carcata (Ach.) M. Choisy, Bull. mens. Soc. linn. Lyon 20: 131 (1951)
Cladonia floerkeana f. carcata (Ach.) J.W. Thomson, The Lichen Genus Cladonia in North America (Toronto): 71 (1968) [1967]

Cladonia floerkeana var. intermedia Hepp, Flecht. Europ.: no. 222 (1853)
Cladonia macilenta f. intermedia (Hepp) M. Choisy, Bull. mens. Soc. linn. Soc. Bot. Lyon 20: 131 (1951)
Cladonia floerkeana f. intermedia (Hepp) J.W. Thomson, The Lichen Genus Cladonia in North America (Toronto): 71 (1968) [1967]

Cladonia floerkeana var. trachypoda Nyl., in Larbalestier n. 84, Lich. Exsicc.: no. 84 (1879)
Cladonia macilenta subf. trachypoda (Nyl.) M. Choisy, Bull. mens. Soc. linn. Soc. Bot. Lyon 20: 131 (1951)

Position in classification:
Cladonia, Cladoniaceae, Lecanorales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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