Species (13.556)
- Orbilia sambuci Velen. 1934
- Orbilia vinosa (Alb. & Schwein. : Fr.) P. Karst. 1871
- Orbilia vitalbae Rehm 1923
- Orbilia xanthoguttulata Baral 2014
- Orbilia xanthostigma (Fr.) Fr. 1849
- Orbilia cardui Velen. 1934
- Orbilia ebuli Svr?ek 1987
- Rhabdospora saxonica Bubák & Krieg. 1912
- Rhabdospora visci (Bres.) Died. 1914
- Rhachomyces lasiophorus Thaxt. 1895
- Rhagadostoma brevisporum (Nav.-Ros. & Hladun) Nav.-Ros. 1999
- Rhamphoria bevanii Sivan. 1977
- Rhagadostoma lichenicola (De Not.) Keissl. 1930
- Rhamphoria pyriformis (Pers.) Höhn. 1913
- Rhamphoria tympanidispora Rehm 1887
- Rhabdospora pleosporoides Sacc. 1884
- Rhabdospora salicella Ferraris 1884
- Rhamphoria viticola Ade 1923
- Rhamphosphaeria capillata Kirschst. 1936
- Rhaphidicyrtis trichosporella (Nyl.) Vain. 1921
- Rhexocercosporidium carotae (Årsvoll) U. Braun 1994
- Rhinotrichella globulifera G. Arnaud ex De Hoog 1977
- Rhinocladium torulosum (Bonord.) Sacc., Marchal & É.J. Marchal 1886
- Rhizina undulata Fr. : Fr. 1815
- Rhodoscypha ovilla (Peck) Dissing & Sivertsen 1983
- Rhodotarzetta rosea (Rea) Dissing & Sivertsen 1983
- Rhopalomyces magnus Berl. 1892
- Rhopographus filicinus (Fr.) Nitschke 1870
- Rhynchosporium secalis (Oudem.) Davis 1922
- Rosellinia abietina Fuckel 1867
- Rosellinia mammiformis (Pers. : Fr.) Ces. & De Not. 1863
- Rosellinia franciscae L.E. Petrini 1992
- Rosellinia diathrausta (Rehm) L.E. Petrini 1986
- Rosellinia rimincola Rehm 1881
- Rosellinia desmazieri (Berk. & Broome) Sacc. 1878
- Rosellinia saccardii L.E. Petrini 1992
- Rosellinia subsimilis P. Karst. & Starbäck 1887
- Rosellinia thelena (Fr. : Fr.) Rabenh. 1865
- Roseodiscus formosus Wieschollek, Helleman, Baral & T. Richter 2011
- Roselliniella cladoniae (Anzi) Matzer & Hafellner 1990
- Roseodiscus equisetinus (Velen.) Baral 2006
- Rosellinia thelena var. microspora L.E. Petrini 1992
- Roseodiscus rhodoleucus (Fr.) Baral 2006
- Rostrocoronophora geranii Munk 1953
- Rodwayella citrinula (P. Karst.) Spooner & Dennis 1968
- Rodwayella myricae Spooner 1986
- Rodwayella sessilis (Rodway) Spooner 1987
- Roesleria subterranea (Weinm.) Redhead 1985
- Rosasphaeria moravica (Petr.) Jaklitsch & Voglmayr 2012
- Rosellinia amblystoma Berl. & F. Sacc. 1889
- Rosellinia aquila (Fr.) De Not. 1844
- Rosellinia araneosa (Pers.) Sacc. 1882
- Rosellinia buxi H. Fabre 1879
- Rosellinia britannica L.E. Petrini 1989
- Rosellinia callosa G. Winter 1874
- Rosellinia helvetica L.E. Petrini, Petrini & S.M. Francis 1989
- Rosellinia evansii Læssøe & Spooner 1994
- Rosellinia glabra (Fuckel) L.E. Petrini 1992
- Rosellinia necatrix Berl. ex Prill. 1904
- Rosellinia medullaris (Wallr.) Ces. & De Not. 1863
- Rosellinia nectrioides Rehm 1908
- Rosellinia corticium (Schwein. : Fr.) Sacc. 1882
- Rosellinia rosarum Niessl 1872
- Roselliniella microthelia (Wallr.) Nik. Hoffmann & Hafellner 2000
- Rosellinia tunicata Kirschst. 1911
- Roseodiscus subcarneus (Sacc.) Baral 2006
- Rhizosphaera kalkhoffii Bubák 1914
- Rhizodiscina lignyota (Fr.) Hafellner 1979
- Ramularia filaris Fresen. 1863
- Ramularia geranii (Westend.) Fuckel 1870
- Ramularia galegae Sacc. 1881
- Ramularia filaris var. carniolica (Jaap) U. Braun 1992
- Ramularia galii Chevassut 1992
- Ramularia exilis Syd. & P. Syd. 1905
- Ramularia gei (A.G. Eliasson) Lindr. 1910
- Ramularia gratiolae U. Braun & Scheuer 2008
- Ramularia jaapiana (Magnus) U. Braun 1993
- Ramularia jubatskana (Sacc.) U. Braun 1993
- Ramularia lactea (Desm.) Sacc. 1881
- Ramularia gracilispora U. Braun 1993
- Ramularia lactucae Jaap ex Lindau 1905
- Ramularia lonicerae Voglino 1904
- Ramularia lychnicola Cooke 1885
- Ramularia marrubii C. Massal. 1889
- Ramularia minutissima (Syd.) U. Braun 1988
- Ramularia medicaginis Bondartsev & Lebedeva 1914
- Ramularia montana Speg. 1879
- Ramularia matricariae Antok. ex Vassiljevsky & Karak. 1937
- Ramularia menthicola Sacc. 1886
- Ramularia prenanthis Jaap 1906
- Ramularia pusilla Unger 1833
- Ramularia purpurascens G. Winter 1884
- Ramularia pimpinellae Jaap 1908
- Ramularia primulana (P. Karst.) P. Karst. 1884
- Ramularia picridis Fautrey & Lambotte 1892