Quisumb. 1932: Mount Makiling Bulbophyllum Bulbophyllum marginatum Schltr. 1913 Bulbophyllum marivelense Ames 1912 Bulbophyllum marknaivei Cootes, R.Boos & M.Leon (2016) Bulbophyllum marojejiense H.Perrier 1951 Bulbophyllum marovoense H.Perrier 1951 Bulbophyllum marudiense Carr 1935 Bulbophyllum masaganapense Ames 1920 Bulbophyllum masarangicum Schltr. 1911 Bulbophyllum maskeliyense Livera 1926 Bulbophyllum masoalanum Schltr. 1916: Masoala Bulbophyllum Bulbophyllum masonii (Senghas) J.J.Wood 1986 Bulbophyllum mastersianum (Rolfe) J.J.Sm. 1912 Bulbophyllum mattesii Sieder & Kiehn (2009) Bulbophyllum maudeae A.D.Hawkes 1966 Bulbophyllum maxillare (Lindl.) Rchb.f. (1861) – red horntail orchid Bulbophyllum maxillarioides Schltr. in K.M.Schumann & C.A.G.Lauterbach 1905 Bulbophyllum maximum (Lindl.) Rchb.f. in W.G.Walpers 1861 Bulbophyllum mayrii J.J.Sm. 1934 Bulbophyllum mearnsii Ames (1913 publ. 1914): Mearns' Bulbophyllum Bulbophyllum mediocre Summerh. ex Exell 1959 Bulbophyllum medioximum J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum medusae (Lindl.) Rchb.f. in W.G.Walpers 1861 Bulbophyllum megalonyx Rchb.f. 1881 Bulbophyllum melanoglossum Hayata 1914 Bulbophyllum melilotus J.J.Sm. 1929 Bulbophyllum melinanthum Schltr. in K.M.Schumann & C.A.G.Lauterbach 1905 Bulbophyllum melinoglossum Schltr. 1913 Bulbophyllum melleum H.Perrier 1937 Bulbophyllum melloi Pabst 1977 Bulbophyllum membranaceum Teijsm. & Binn. 1855 Bulbophyllum membranifolium Hook.f. 1890 Bulbophyllum membranifolium subsp. inunctum (J.J.Sm.) J.J.Verm., P.O'Byrne & A.L.Lamb (2015) Bulbophyllum membranifolium subsp. membranifolium Bulbophyllum menghaiense Z.H.Tsi 1981 Bulbophyllum menglaense Jian W.Li & X.H.Jin (2017) Bulbophyllum menglunense Z.H.Tsi & Y.Z.Ma 1985 Bulbophyllum mengyuanense Q.Liu, Jian W.Li & X.H.Jin (2015) Bulbophyllum mentiferum J.J.Sm. 1927 Bulbophyllum mentosum Barb.Rodr. 1877 Bulbophyllum meridense Rchb.f. 1850 Bulbophyllum meristorhachis Garay & Dunst. 1976 Bulbophyllum merrittii Ames 1907 Bulbophyllum mesodon J.J.Verm. 1993 Bulbophyllum meson J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum metonymon Summerh. (1951 publ. 1952). Bulbophyllum micholitzianum Kraenzl. 1893 Bulbophyllum micholitzii Rolfe 1901: Micholitz' Bulbophyllum Bulbophyllum micranthum Barb.Rodr. 1877 Bulbophyllum microblepharon Schltr. 1913 Bulbophyllum microbulbon Schltr. in K.M.Schumann & C.A.G.Lauterbach 1905 Bulbophyllum microcala P.F.Hunt 1970 Bulbophyllum microdendron Schltr. 1913 Bulbophyllum microglossum Ridl. 1908: Small-lipped Bulbophyllum Bulbophyllum microlabium W.Kittr. (1984 publ. 1985). Bulbophyllum micronesiacum Schltr. 1921 Bulbophyllum micropetaliforme Leite 1946 Bulbophyllum micropetalum Lindl. (1862) Bulbophyllum microrhombos Schltr. 1912 Bulbophyllum microsphaerum Schltr. 1913 Bulbophyllum microtepalum Rchb.f. in W.G.Walpers 1861: Bulbophyllum microtes Schltr. 1913 Bulbophyllum microthamnus Schltr. 1923 Bulbophyllum migueldavidii Cootes, Cabactulan & Pimentel (2017) Bulbophyllum mimiense Schltr. 1913 Bulbophyllum minax Schltr. 1924 Bulbophyllum mindorense Ames 1907 Bulbophyllum minutibulbum W.Kittr. (1984 publ. 1985). Bulbophyllum minutilabrum H.Perrier 1937 Bulbophyllum minutipetalum Schltr. 1913: Small-petaled Bulbophyllum Bulbophyllum minutissimum (F.Muell.) F.Muell. 1878 Bulbophyllum minutius J.J.Verm., Schuit. & de Vogel (2014) Bulbophyllum minutulum Ridl. ex Burkill & Holttum 1923 Bulbophyllum minutum Thouars 1822 Bulbophyllum mirabile Hallier f. 1889 Bulbophyllum mirificum Schltr. 1918 Bulbophyllum mirum J.J.Sm.