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                                            Synonym                                         | 
                                        
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                                            libertina Stuckenb. [Cetraria], Bot. Mater. Inst. Sporov. Rast. Glavn. Bot. Sada RSFSR 4: 31. 1926 = Cetraria ericetorum Opiz                                         | 
                                        
                                            Type: (Russia), Gub. Pensa, Distr. Saransk, 1912, Sprygin (LE, holotype).                                         | 
                                    
                                                                        
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                                            74                                         | 
                                        
                                            Current name                                         | 
                                        
                                            Cetrarioid core, position OK                                         | 
                                        
                                            madreporiformis (Ach.) Kärnefelt & A. Thell [Allocetraria], Nova Hedwigia 62: 508. 1996.                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            madreporiformis (Ach.) Müll. Arg. [Cetraria], Flora 53: 325. 1870 ≡ Allocetraria madreporiformis (Ach.) Kärnefelt & A. Thell                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            madreporiformis (Ach.) Tuck. [Dactylina], Proc. Amer. Acad. Arts. 5: 398. 1862 ≡ Allocetraria madreporiformis (Ach.) Kärnefelt & A. Thell                                         | 
                                        
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                                            Synonym (basionym)                                         | 
                                        
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                                            madreporiformis Ach. [Dufourea], Lich. Univ.: 525. 1810 ≡ Allocetraria madreporiformis (Ach.) Kärnefelt & A. Thell                                         | 
                                        
                                            Type:                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            magnussonii Llano [Cetraria], J. Wash. Acad. Sci. 41: 198. 1951 = Arctocetraria nigricascens (Nyl.) Kärnefelt & A. Thell                                         | 
                                        
                                            Type: (Russia), Gub. Jenisejsk, Nikandrovskij Ostrov, 1876, Brenner 1827d (S).                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            megaleia (Nyl.) Räsänen [Cetraria], Kuopion Luonnon Ystäväin Yhdistyksen Julkaisuja, B 2, 6: 42. 1952 = Cetrelia sanguinea (Schaer.) W.L. Culb. & C.F. Culb.                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            megaleia Nyl. [Parmelia], Syn. Lich. 1: 378. 1860 = Cetrelia sanguinea (Schaer.) W.L. Culb. & C.F. Culb.                                         | 
                                        
                                            Type: Java, Junghuhn (PC, lectotype).                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            megaleium (Nyl.) Nyl. [Platysma], Flora 52: 290. 1869 = Cetrelia sanguinea (Schaer.) W.L. Culb. & C.F. Culb.                                         | 
                                        
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                                            75                                         | 
                                        
                                            Current name                                         | 
                                        
                                            Cetrarioid core, position OK                                         | 
                                        
                                            melaloma (Nyl.) A. Thell & Randlane [Nephromopsis],  in Thell, Randlane, Saag & Kärnefelt, Mycol. Progr. 4: 311. 2005.                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            melaloma (Nyl.) Kremp. [Cetraria], Verh. Zool.-Bot. Ges. Wien 18: 315. 1868  ≡ Nephromopsis melaloma (Nyl.) A. Thell & Randlane                                         | 
                                        
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                                            Synonym (basionym)                                         | 
                                        
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                                            melalomum Nyl. [Platysma], Syn. Lich. 1: 303. 1860 ≡ Nephromopsis melaloma (Nyl.) A. Thell & Randlane                                         | 
                                        
                                            Type: India, Sikkim, Jongri, Hooker 2665 (BM, lectotype).                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            melanothrix (Mont.) Mont. [Cetraria], Syll. Gener. Spec. Cryptog.: 322. 1856 ≡ Parmotrema melanothrix (Mont.) Hale                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            melanothrix Mont. [Parmelia urceolata Eschw. var.], Ann. Sci. Nat., Bot., Ser. 2: 372. 1834 ≡ Parmotrema melanothrix (Mont.) Hale                                         | 
                                        
                                            Type:                                         | 
                                    
                                                                        
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                                            76                                         | 
                                        
                                            Current name                                         | 
                                        
                                            Cetrarioid core, position OK                                         | 
                                        
                                            merrillii (Du Rietz) A. Thell & Goward [Kaernefeltia], Bryologist 99: 128. 1996.                                         | 
                                        
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