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                                            Synonym (basionym)                                         | 
                                        
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                                            herrei Imshaug [Cetraria], Bryologist 57: 6. 1954 ≡ Platismatia herrei (Imshaug) W.L. Culb. & C.F. Culb.                                         | 
                                        
                                            Based on Cetraria glauca b. stenophylla Tuck. (Culbeson & Culberson 1968), see its type.                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            hiascens (Fr.) Th. Fr. [Cetraria], Lichenogr. Scandin. 1: 99. 1871 = Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            hiascens Fr. [Cetraria aculeata (Schreb.) Fr. ß], Lichenogr. Europaea Reform.: 36. 1831 = Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell                                         | 
                                        
                                            Type: Norway, Opland, Rondane, 1973, Kärnefelt 2348 (LD, neotype).                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            hypotrachyna (Müll. Arg) D.D. Awasthi  [Nephromopsis], Lichenology in Indian Subcontinent, A Supplement to "A Handbook of Lichens" (Dehra Dun): 15. 2000  ≡ Cetreliopsis hypotrachyna (Müll. Arg.) Randlane & Saag                                         | 
                                        
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                                            53                                         | 
                                        
                                            Current name                                         | 
                                        
                                            Cetrarioid core, position OK                                         | 
                                        
                                            hypotrachyna (Müll. Arg) Randlane & Saag  [Cetreliopsis], Mycotaxon 87: 482. 2003.                                         | 
                                        
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                                            Synonym (basionym)                                         | 
                                        
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                                            hypotrachyna Müll. Arg. [Cetraria], Flora 74: 373. 1891 ≡ Cetreliopsis hypotrachyna (Müll. Arg.) Randlane & Saag                                         | 
                                        
                                            Type: India, Manipur, Watt 6949 (BM, holotype).                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            iberica A. Crespo & Barreno [Cetraria], Anales Jard. Bot. Madrid 37: 205. 1980 = Kaernefeltia merrillii (Du Rietz) A. Thell & Goward                                         | 
                                        
                                            Type: Spain, Guadalajara, Tamajón, 1980, Crespo & Barreno 2238 (MAF, holotype; GZU, LD, isotypes).                                         | 
                                    
                                                                        
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                                            54                                         | 
                                        
                                            Current name                                         | 
                                        
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                                            idahoensis (Essl.) Hale & M.J. Lai  [Esslingeriana], in M.J. Lai,  Quart. J. Taiwan Mus. 33: 220. 1980.                                         | 
                                        
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                                            Synonym (basionym)                                         | 
                                        
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                                            idahoensis Essl. [Cetraria], Bryologist 74: 366. 1971 ≡ Esslingeriana idahoensis (Essl.) Hale & M.J. Lai                                         | 
                                        
                                            Type: USA, Washington, Mount Spokane State Park, Esslinger 2554 (DUKE, holotype).                                         | 
                                    
                                                                        
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                                            55                                         | 
                                        
                                            Current name                                         | 
                                        
                                            Cetrarioid core, position unclear                                         | 
                                        
                                            inermis (Nyl.) Kärnefelt ["Tuckermannopsis"], Bryologist 96: 403. 1993.                                         | 
                                        
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                                            Synonym                                         | 
                                        
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                                            inermis (Nyl.) Krog [Cetraria], Bryologist 76: 229. 1973 ≡ Tuckermannopsis inermis (Nyl.) Kärnefelt                                         | 
                                        
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                                            Synonym (basionym)                                         | 
                                        
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                                            inermis Nyl. [Cetraria crispa (Ach.) Nyl. f.], Bull. Soc. Linn. Normandie 4, 1: 214. 1887 ≡ Tuckermannopsis inermis (Nyl.) Kärnefelt                                         | 
                                        
                                            Type: (Russia), Siberia septentrionalis, Konyam, Bering reg, 1879, Almquist (S).                                         | 
                                    
                                                                        
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                                            Synonym                                         | 
                                        
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                                            inflata Hook. f. & Taylor [Cetraria], London J. Bot. 3: 646. 1844 ≡ Ramalina inflata (Hook. f. & Taylor) Hook. f. & Taylor                                         | 
                                        
                                            Type:                                         | 
                                    
                                                                        
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                                            56                                         | 
                                        
                                            Current name                                         | 
                                        
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                                            interrupta W.L. Culb. & C.F. Culb. [Platismatia], Contr. U. S. Natl. Herb. 34: 539. 1968.                                         | 
                                        
                                            Type: Japan, Shinano Prov., Mt. Norikura, 1952, Asahina (TNS, holotype).                                         | 
                                    
                                                                        
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                                            57                                         | 
                                        
                                            Current name                                         | 
                                        
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                                            isidiata (Asahina) W.L. Culb. & C.F. Culb. [Cetrelia], Contr. U. S. Natl. Herb. 34: 510. 1968.                                         | 
                                        
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