(Kuntze) Schltr. 1915 Bulbophyllum reifii Sieder & Kieh (2009) Bulbophyllum remiferum Carr 1933 Bulbophyllum remotifolium (Fukuy.) K.Nakaj. (1973) Bulbophyllum renipetalum Schltr. 1913 Bulbophyllum renkinianum (Laurent) De Wild. 1921 Bulbophyllum repens Griff. 1851 Bulbophyllum reptans (Lindl.) Lindl. in N.Wallich 1829 Bulbophyllum restrepia (Ridl.) Ridl. 1893 Bulbophyllum resupinatum Ridl. 1887 Bulbophyllum resupinatum var. filiforme (Kraenzl.) J.J.Verm. 1986 Bulbophyllum resupinatum var. resupinatum Bulbophyllum reticulatum Bateman ex Hook.f. 1866 Bulbophyllum retrorsum J.J.Verm. & A.L.Lamb (2008) Bulbophyllum retusiusculum Rchb.f. 1869 Bulbophyllum rheedei Manilal & Sath.Kumar 1991 Bulbophyllum rheophyton J.J.Verm. & Tsukaya (2011) Bulbophyllum rhizomatosum Ames & C.Schweinf. in O.Ames 1920 Bulbophyllum rhodoglossum Schltr. 1913 Bulbophyllum rhodoleucum Schltr. 1913 Bulbophyllum rhodoneuron Schltr. 1913 Bulbophyllum rhodophyllum J.J.Verm. & P.O'Byrne (2008) Bulbophyllum rhodosepalum Schltr. 1901 Bulbophyllum rhodostachys Schltr. 1916 Bulbophyllum rhomboglossum Schltr. 1913 Bulbophyllum rhopaloblepharon Schltr. 1913 Bulbophyllum rhopalophorum Schltr. 1913 Bulbophyllum rhynchoglossum Schltr. 1910 Bulbophyllum rictorium Schltr. (1925) Bulbophyllum rienanense H.Perrier 1937 Bulbophyllum rigidifilum J.J.Sm. 1920 Bulbophyllum rigidipes Schltr. in K.M.Schumann & C.A.G.Lauterbach 1905 Bulbophyllum rigidum King & Pantl. 1895 Bulbophyllum rimannii (Rchb.f.) J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum riparium J.J.Sm. 1929 Bulbophyllum rivulare Schltr. 1913 Bulbophyllum rolfei (Kuntze) Seidenf. 1979 Bulbophyllum romburghii J.J.Sm. 1907 Bulbophyllum romyi B.Thoms (2015) Bulbophyllum roraimense Rolfe 1896 Bulbophyllum rosemarianum Sath.Kumar 2001 Bulbophyllum roseopictum J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum roseopunctatum Schltr. 1913 Bulbophyllum roseum Ridl. (1896) Bulbophyllum rostriceps Rchb.f. 1878 Bulbophyllum rothschildianum (O'Brien) J.J.Sm. 1912: Rothschild's Bulbophyylum Bulbophyllum roxburghii (Lindl.) Rchb.f. in W.G.Walpers 1861 Bulbophyllum rubiferum J.J.Sm. 1918 Bulbophyllum rubiginosum Schltr. 1925 Bulbophyllum rubipetalum P.Royen 1979 Bulbophyllum rubrigemmum Hermans (2007) Bulbophyllum rubroguttatum Seidenf. 1985 Bulbophyllum rubrolabellum T.P.Lin 1975 Bulbophyllum rubrolabium Schltr. 1916 Bulbophyllum rubrolineatum Schltr. 1923 Bulbophyllum rubrolingue Cootes & Boos (2015) Bulbophyllum rubromaculatum W.Kittr. (1984 publ. 1985). Bulbophyllum rubrum Jum. & H.Perrier 1912 Bulbophyllum rubusioides Naive, M.Leon & Cootes (2017) Bulbophyllum ruficaudatum Ridl. 1910 Bulbophyllum rufilabrum C.S.P.Parish ex Hook.f. 1890 Bulbophyllum rufinum Rchb.f. 1881 Bulbophyllum ruginosum H.Perrier (1937) Bulbophyllum rugosibulbum Summerh. 1960 Bulbophyllum rugosisepalum Seidenf. 1979 Bulbophyllum rugosum Ridl. 1897 Bulbophyllum rugulosum J.J.Sm. 1935 Bulbophyllum rupicola Barb.Rodr. 1877 Bulbophyllum rutenbergianum Schltr. 1924 Bulbophyllum rutilans J.J.Verm. & A.L.Lamb, (2008) Bulbophyllum rutiliflorum J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum rysyanum Roeth (2007) S Bulbophyllum saccoglossum J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum saccolabioides J.J.Sm. 1929 Bulbophyllum sagemuelleri R.Bustam. & Kindler (2015) Bulbophyllum salaccense Rchb.f. 1857 Bulbophyllum salmoneum Aver. & J.J.Verm. (2012) Bulbophyllum saltatorium Lindl. 1837: Dancing Bulbophyllum Bulbophyllum saltatorium var. albociliatum (Finet) J.J.Verm. 1986 Bulbophyllum saltatorium var. calamarium (Lindl.) J.J.Verm.