Synonymy See Note

Current Name:
Placynthium caesium (Fr.) Jatta, Syll. Lich. Ital. (Trano): 38 (1900)

Synonymy:
Biatora caesia (Ach.) Nägeli, in Hepp, Flecht. Europ.: no. 22 (1853)
Collolechia caesia (Fr.) A. Massal., Geneac. lich. (Verona): 7 (1854)
Lecidea caesia (Ach.) Dufour, in Ravaud, Rev. Bryol. 2: 45 (1875)
Lecidea caesia (Fr.) Lönnr., Öfvers. K. Svensk. Vetensk.-Akad. Förhandl. 14(1): 6 (1857)
Lecidea contigua var. caesia Fr., Lich. eur. reform. (Lund): 302 (1831)
Lecidea immersa f. leucoplaca Schaer., Enum. critic. lich. europ. (Bern): 127 (1850)
Lecidea immersa var. leucoplaca (Wallr.) Schaer., Enum. critic. lich. europ. (Bern): 126 (1850)
Lecidea microphylla var. caesia (Fr.) Grognot, Pl. crypt.-cellul. Saône-et-Loire: 67 (1863)
Lecidea thriptophylla var. caesia (Fr.) Schaer., Enum. critic. lich. europ. (Bern): 99 (1850)
Lecothecium caesium (Ach.) Syd., Flecht. Deutschlands: 305 (1887)
Lepra caesia (Ach.) Duby, Bot. Gall., Edn 2 (Paris) 2: 677 (1830)
Lepraria caesia Ach., Lich. Univ.: 667 (1810)
Pannaria caesia (Ach.) Nyl., Annls Sci. Nat., Bot., sér. 4 12: 295 (1859)
Pannaria nigra * caesia (Fr.) Nyl., Syn. meth. lich. (Parisiis) 2: 37 (1869)
Pannaria nigra f. caesia (Fr.) Tuck., Syn. N. Amer. Lich. (Boston) 1: 127 (1882)
Pannaria nigra var. caesia (Fr.) Malbr., Bull. Soc. Amis Sci. Nat. Rouen 4: 237 (1868)
Pannaria thriptophylla var. caesia (Fr.) Nyl., Act. Soc. linn. Bordeaux 21(4): 313 (1857) [1856]
Pannularia caesia (Ach.) Flagey, Revue mycol., Toulouse 10(no. 39): 129 (1888)
Pannularia nigra var. caesia (Fr.) Kieff., Bull. Soc. Hist. Nat. Metz 19: 63 (1895)
Patellaria caesia (Ach.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 361 (1831)
Patellaria caesia f. leucoplaca Wallr., Fl. crypt. Germ. (Norimbergae) 1: 361 (1831)
Placynthium caesium (Ach.) Vain., Ark. Bot. 8(no. 4): 98 (1909)
Placynthium nigrum var. caesium (Fr.) Hue, Bull. Soc. linn. Normandie, sér. 5 9: 146 (1906)
Psoroma thriptophylla ** caesium (Ach.) Nyl. [as 'caesia'], Annls Sci. Nat., Bot., sér. 4 12: 295 (1859)
Racoblenna caesia (Ach.) A. Massal., Ric. auton. lich. crost. (Verona): 139 (1852)

Synonymy Contributor(s):
Kew Mycology (2022)

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