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total 2888
Genus Species Author Year Distribution
Aa schickendanzii Schltr. 1920 NW. Argentina
Aa sphaeroglossa Schltr. 1922 Bolivia
Acanthophippium splendidum J.J.Sm. 1898 Sulawesi to SW. Pacific
Acanthophippium striatum Lindl. 1838 E. Nepal to Lesser Sunda Is.
Acanthophippium sylhetense Lindl. 1831 Sikkim to Philippines and Nansei-shoto
Acianthera sabinoana Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. 2006
Acianthera sandaliorum (G.A.Romero & Carnevali) Luer 2004 Venezuela (Amazonas)
Acianthera saraca-taquerensis Campacci & J.B.F.Silva 2016 Brazil (Pará)
Acianthera sarcosepala (Carnevali & I.Ramírez) Carnevali & G.A.Romero 2008 Venezuela (Bolívar)
Acianthera saundersiana (Rchb.f.) Pridgeon & M.W.Chase 2001 Brazil to Bolivia and Argentina (Misiones)
Acianthera saurocephala (G.Lodd.) Pridgeon & M.W.Chase 2001 SE. & S. Brazil
Acianthera scabripes (Lindl.) Karremans 2016 Brazil (S\x{00e3}o Paulo)
Acianthera scalpricaulis (Luer) Pridgeon & M.W.Chase 2001 Ecuador, Bolivia
Acianthera serpentula (Barb.Rodr.) F.Barros 2003 Brazil (Minas Gerais)
Acianthera serratifolia Rinc.-González & Karremans 2015 Colombia
Acianthera serrulatipetala (Barb.Rodr.) Pridgeon & M.W.Chase 2001 Brazil (Minas Gerais)
Acianthera sicaria (Lindl.) Pridgeon & M.W.Chase 2001 Trinidad, Costa Rica to Venezuela and Bolivia
Acianthera sicariopsis (Luer) Pridgeon & M.W.Chase 2001 Ecuador to Bolivia
Acianthera sicula (Luer & R.Vásquez) Luer 2004 Ecuador to Bolivia
Acianthera sigmoidea (Ames & C.Schweinf.) A.Doucette 2016 Costa Rica
Acianthera silvae (Luer & Toscano) Luer 2004 Brazil (Amazonas)
Acianthera similis (Schltr.) Karremans, Chiron & Van den Berg 2016 S. Brazil to Argentina (Misiones)
Acianthera simpliciflora (Dod) A.Doucette 2016 Dominican Rep.
Acianthera sonderiana (Rchb.f.) Pridgeon & M.W.Chase 2001 SE. & S. Brazil to Argentina (Misiones)
Acianthera sotoana Solano 2010 Mexico (Veracruz, Oaxaca);
Acianthera spilantha (Barb.Rodr.) Luer 2007 SE. & S. Brazil
Acianthera stenzelii Luer 2014 Cuba
Acianthera strupifolia (Lindl.) Pridgeon & M.W.Chase 2001 SE. & S. Brazil
Acianthera subrotundifolia (Cogn.) F.Barros & V.T.Rodrigues 2009 Brazil (Rio de Janeiro)
Acianthera sulcata (Porsch) F.Barros & V.T.Rodrigues 2009 Brazil (São Paulo, Minas Gerais)
Acianthera sulphurea (Barb.Rodr.) F.Barros & V.T.Rodrigues 2009 Brazil (Rio de Janeiro)
Acianthus saxatilis D.L.Jones & M.A.Clem. 2014 Queensland
Acianthus sinclairii Hook.f. 1853 New Zealand (incl. Stewart I.), Chatman Is., Kermadec Is.
Acineta salazarii Soto Arenas 2003 Mexico (Oaxaca, Chiapas) to El Salvador
Acineta sella-turcica Rchb.f. 1852 Costa Rica to Panama
Acineta sulcata Rchb.f. 1879 Colombia (?)
Acineta superba (Kunth) Rchb.f. 1863 N. & W. South America
Acronia suinii Luer 2005 Ecuador
Adenoncos saccata J.J.Sm. 1912 Borneo
Adenoncos suborbicularis Carr 1933 N. Sumatera
Adenoncos sumatrana J.J.Sm. 1909 Pen. Thailand to W. Malesia
Aerangis seegeri Senghas 1983 NE. & EC. Madagascar
Aerangis somalensis (Schltr.) Schltr. 1918 SW. Ethiopia to Northern Prov.
Aerangis spiculata (Finet) Senghas 1972 Comoros, N. Madagascar
Aerangis splendida J.Stewart & la Croix 1987 S. Malawi to Zambia
Aerangis stelligera Summerh. 1954 WC. Trop. Africa
Aerangis stylosa (Rolfe) Schltr. 1915 Comoros, Madagascar
Aeranthes sambiranoensis Schltr. 1925 N. Madagascar
Aeranthes schlechteri Bosser 1970 N. & W. Madagascar
Aeranthes setiformis Garay 1972 C. Madagascar
Aeranthes setipes Schltr. 1925 N. Madagascar
Aeranthes strangulata Frapp. ex Cordem. 1895 Réunion, C. Madagascar
Aeranthes subramosa Garay 1972 N. Madagascar
Aerides savageana A.H.Kent 1891 Philippines
Aerides shibatiana Boxall ex Náves 1880 Philippines
Aerides sukauensis Shim 2004 Borneo (Sabah)
Aeridostachya sumatrensis (Ridl.) Rauschert 1983
Afropectinariella subulata (Lindl.) M.Simo & Stévart 2018
Aglossorrhyncha serrulata Schltr. 1912 New Guinea
Aglossorrhyncha stenophylla Schltr. 1922 New Guinea
Agrostophyllum saccatilabium Ames & Quisumb. 1932 Philippines
Agrostophyllum saccatum Ridl. 1896 Borneo
Agrostophyllum sepikanum Schltr. 1922 New Guinea
Agrostophyllum simile Schltr. 1911 Sulawesi
Agrostophyllum spicatum Schltr. 1905 New Guinea
Agrostophyllum spinuliferum Ormerod 2012 Papua New Guinea
Agrostophyllum spinuliferum subsp. misoense Ormerod 2012 Papua New Guinea
Agrostophyllum spinuliferum subsp. spinuliferum Papua New Guinea
Agrostophyllum stenophyllum Schltr. 1912 New Guinea
Agrostophyllum stipulatum (Griff.) Schltr. 1912 Indo-China, Malesia to Solomon Is.
Agrostophyllum stipulatum subsp. bicuspidatum (J.J.Sm.) Schuit. 1997 W. & C. Malesia
Agrostophyllum stipulatum subsp. stipulatum Indo-China, Malesia to Solomon Is.
Agrostophyllum subacuminatum Ormerod 2011 W. New Guinea
Agrostophyllum sumatranum Schltr. & J.J.Sm. 1908 W. Sumatera, Borneo
Agrostophyllum superpositum Schltr. 1912 New Guinea to Solomon Is.
Alatiliparis speculifera (J.J.Sm.) Szlach. & Marg. 2001 W. Jawa
Anacamptis sancta (L.) R.M.Bateman, Pridgeon & M.W.Chase 1997 E. Medit.
Anacheilium silvanum (Cath. & V.P.Castro) Campacci 2018
Anathallis sanchezii (Luer & Hirtz) Luer 2009 Ecuador (Zamora-Chnchipe)
Anathallis sansoniana Chiron & Guiard 2013 Brazil (Espírito Santo)
Anathallis scariosa (Lex.) Pridgeon & M.W.Chase 2001 C. & SW. Mexico
Anathallis schlimii (Luer) Pridgeon & M.W.Chase 2001 Colombia
Anathallis sclerophylla (Lindl.) Pridgeon & M.W.Chase 2001 S. Trop. America
Anathallis seidelii Luer, Toscano & Baptista 2011 Brazil (Santa Catarina)
Anathallis sertularioides (Sw.) Pridgeon & M.W.Chase 2001 S. Mexico to Trop. America
Anathallis simpliciglossa (Loefgr.) Pridgeon & M.W.Chase 2001 S. Brazil
Anathallis smaragdina (Luer) Pridgeon & M.W.Chase 2001 Ecuador (Pastaza)
Anathallis soratana (Rchb.f.) Pridgeon & M.W.Chase 2001 Bolivia
Anathallis sororcula (Schltr.) Luer 2007 Brazil (São Paulo to Paraná)
Anathallis spannageliana (Hoehne) Pridgeon & M.W.Chase 2001 Brazil (Rio de Janeiro)
Anathallis spathilabia (Schltr.) Pridgeon & M.W.Chase 2001 SW. Colombia to W. Ecuador
Anathallis spathuliformis (Luer & R.Vásquez) Pridgeon & M.W.Chase 2001 Bolivia (Cochabamba)
Anathallis spiculifera (Lindl.) Luer 2009 Trinidad & Tobago to Brazil
Anathallis steinbuchiae (Carnevali & G.A.Romero) Luer 2009 Venezuela (Bolívar)
Anathallis stenophylla (F.Lehm. & Kraenzl.) Pridgeon & M.W.Chase 2001 W. South America
Anathallis subnulla (Luer & Toscano) F.Barros 2006 Brazil (Bahia)
Ancistrorhynchus schumannii (Kraenzl.) Summerh. 1948 S. Nigeria to WC. Trop. Africa
Ancistrorhynchus serratus Summerh. 1966 Bioko, S. Nigeria to Congo
Ancistrorhynchus straussii (Schltr.) Schltr. 1918 Nigeria to WC. Trop. Africa
Andinia schizopogon (Luer) Pridgeon & M.W.Chase 2001 Ecuador
Andinia sibundoyensis (Kolan.) Karremans & S.V.Uribe 2017 Colombia
Andinia spiralis (Ruiz & Pav.) Karremans & Mark Wilson 2017 Colombia to Peru
Andinia stalactites (Luer & Hirtz) Karremans & S.V.Uribe 2017 Ecuador (Azuay, Loja)
Andinia sudamericana (Archila) Karremans & S.V.Uribe 2017 W. South America (?)
Andinia sunchubambensis A.Doucette & Janovec 2016 Peru (Cuzco)
Angraecum sacciferum Lindl. 1837 São Tomé to Kenya and S. Africa
Angraecum sacculatum Schltr. 1925 C. Madagascar
Angraecum salazianum (Cordem.) Schltr. 1915 Réunion
Angraecum sambiranoense Schltr. 1925 N. & C. Madagascar
Angraecum sanfordii P.J.Cribb & B.J.Pollard 2002 Cameroon
Angraecum scalariforme H.Perrier 1955 NE. Madagascar
Angraecum scottianum Rchb.f. 1878 Comoros
Angraecum sedifolium Schltr. 1925 EC. Madagascar
Angraecum serpens (H.Perrier) Bosser 1970 ENE. Madagascar
Angraecum sesquipedale Thouars 1822 E. & SE. Madagascar
Angraecum sesquipedale var. angustifolium Bosser & Morat 1972 SE. Madagascar
Angraecum sesquipedale var. sesquipedale E. & SE. Madagascar
Angraecum sesquisectangulum Kraenzl. 1923 Madagascar
Angraecum setipes Schltr. 1925 C. & E. Madagascar
Angraecum sinuatiflorum H.Perrier 1951 SE. Madagascar
Angraecum sororium Schltr. 1925 Madagascar
Angraecum spectabile Summerh. 1958 NW. Tanzania (Bukoba Distr.)
Angraecum spicatum (Cordem.) Schltr. 1915 Réunion (Cirque de Cilaos)
Angraecum stella-africae P.J.Cribb 1983 Malawi to Northern Prov.
Angraecum sterrophyllum Schltr. 1916 C. Madagascar
Angraecum stolzii Schltr. 1915 Tanzania to Zambia
Angraecum striatum Thouars 1822 Réunion
Angraecum subcordatum (H.Perrier) Bosser 1970 Madagascar
Angraecum subulatum Lindl. 1837 W. & WC. Trop. Africa
Anoectochilus sandvicensis Lindl. 1840 Hawaiian Is.
Anoectochilus sanguineus P.T.Ong & P.O'Byrne 2013 Pen. Malaysia
Anoectochilus setaceus Blume 1825 Jawa to Sumatera
Anoectochilus subregularis (Rchb.f.) Ormerod 1996 Santa Cruz Is. to New Caledonia
Anoectochilus sumatranus (J.J.Sm.) J.B.Comber 2001 Sumatera
Aphyllorchis siantanensis J.J.Sm. 1932 Borneo (Kep. Anambas)
Aphyllorchis simplex Tang & F.T.Wang 1951 China (E. Guangdong) to N. Vietnam
Aphyllorchis spiculaea Rchb.f. 1876 Borneo
Aphyllorchis striata (Ridl.) Schltr. 1906 Pen. Malaysia, Borneo
Aphyllorchis sumatrana J.J.Sm. 1922 W. Sumatera (G. Malintang)
Apostasia shenzhenica Z.J.Liu & L.J.Chen 2011 China (Guangdong)
Appendicula salicifolia J.J.Sm. 1933 Sulawesi
Appendicula scissosaccus (Gilli) Ormerod 2002 New Guinea
Appendicula sepikiana Schltr. 1922 New Guinea
Appendicula seranica J.J.Sm. 1928 Maluku (Seram)
Appendicula sororia Miq. 1859
Appendicula spathilabris J.J.Sm. 1931 Borneo
Appendicula steffensiana (Schltr.) J.J.Sm. 1909 New Guinea
Arachnis senapatiana (Phukan & A.A.Mao) Kocyan & Schuit. 2014 Assam (Manipur)
Arachnis seramensis (Ormerod) R.Rice 2018
Arachnis siamensis (Schltr.) Tang & F.T.Wang 1951 Indo-China
Arachnis sulingi (Blume) Rchb.f. 1886 Sumatera to Bali
Arachnorchis subglabriphylla R.J.Bates 2014
Arpophyllum spicatum Lex. 1825 C. Mexico to C. America
Arthrochilus sabulosus D.L.Jones 1991 N. Queensland
Arthrochilus stenophyllus D.L.Jones 1991 NE. Queensland
Aspasia silvana F.Barros 1989 Brazil (Bahia, Espírito Santo)
Aspidogyne schlechteriana (Hoehne) Meneguzzo 2012 Brazil (São Paulo to Paraná)
Aspidogyne serripetala (Garay) Garay 1977 Mexico (Veracruz), Colombia
Aspidogyne stenocentron (Schltr.) Szlach. & Kolan. 2017 Colombia, Peru
Aspidogyne steyermarkii Carnevali & Foldats 1989 Venezuela (Bolívar)
Aspidogyne stictophylla (Schltr.) Garay 1977 Mexico to C. America
Aspidogyne stigmatoptera (Rchb.f.) Meneguzzo 2012 S. Trop. America
Aspidogyne sumacoensis Ormerod 2008 Ecuador
Barbosella schista Luer & R.Escobar 1983 Colombia (Norte de Santander) to NW. Venezuela
Barbosella spiritu-sanctensis (Pabst) F.Barros & Toscano 1990 Brazil (Espírito Santo)
Barkeria scandens (Lex.) Dressler & Halb. 1977 C. & SW. Mexico
Barkeria shoemakeri Halb. 1975 Mexico (Sinaloa, Michoacan, Oaxaca)
Barkeria skinneri (Bateman ex Lindl.) Paxton 1849 Mexico (Chiapas) to NW. Guatemala
Barkeria spectabilis Bateman ex Lindl. 1842 Mexico (Chiapas) to Nicaragua
Barkeria strophinx (Rchb.f.) Halb. 1977 Mexico (Michoacán)
Basiphyllaea sarcophylla (Rchb.f.) Schltr. 1921 Cuba
Baskervilla stenopetala Dressler 1998 Panama
Beloglottis subpandurata (Ames & C.Schweinf.) Garay 1982 C. America
Biermannia sarcanthoides (Ridl.) Garay 1972 Pen. Malaysia (Johor)
Biermannia sigaldii Seidenf. 1992 Vietnam
Bifrenaria silvana V.P.Castro 1991 Brazil (Bahia)
Bifrenaria stefanae V.P.Castro 1991 SE. Brazil (to Paraná)
Bifrenaria steyermarkii (Foldats) Garay & Dunst. 1976 SE. Venezuela to Guyana and Brazil (Roraima)
Bletia stenophylla Schltr. 1919 Venezuela to Ecuador
Bletilla striata (Thunb.) Rchb.f. 1878 China to Japan
Bonatea saundersioides (Kraenzl. & Schltr.) Cortesi 1905 Mpumalanga to KwaZulu-Natal
Bonatea speciosa (L.f.) Willd. 1805 S. Mozambique to S. Cape Prov.
Bonatea stereophylla (Kraenzl.) Summerh. 1949 SW. Tanzania (Ukinga Mts.)
Bonatea steudneri (Rchb.f.) T.Durand & Schinz 1894 NE. Sudan to N. KwaZulu-Natal, SW. Arabian Pen.
Brachionidium satyreum Luer 1995 Panama
Brachionidium serratum Schltr. 1911 Peru
Brachionidium sherringii Rolfe 1893 Caribbean
Brachionidium simplex Garay 1956 Ecuador
Brachionidium stellare Luer & Hirtz 1995 Ecuador (Morona-Santiago)
Brachionidium sulcatum I.Jiménez 2015 Bolivia
Brachionidium syme-morrisii Luer 1995 Cuba, Jamaica
Brachycorythis sceptrum Schltr. 1921 W. & WC. Trop. Africa
Brachycorythis splendida Summerh. 1955 SW. India
Brachypeza semiteretifolia (H.A.Pedersen) Kocyan & Schuit. 2014 Vietnam
Brachypeza simondiana (Gagnep.) Kocyan & Schuit. 2014 Vietnam
Brachypeza stenoglottis (Hook.f.) Garay 1972 Malesia to New Guinea
Brachystele scabrilingua Szlach. 1993 Brazil (Santa Catarina)
Brachystele subfiliformis (Cogn.) Schltr. 1920 SE. & S. Brazil
Bracisepalum selebicum J.J.Sm. 1933 Sulawesi
Brassavola suaveolens Galeotti ex Hemsl. 1879
Brassavola subulifolia Lindl. 1831 Jamaica
Brassia signata Rchb.f. 1881 SW. Mexico, Peru to Bolivia
Brassia suavissima Pupulin & Bogarín 2005 Costa Rica
Brassia sulphurea (Rchb.f.) M.W.Chase 2011 NW. Venezuela
Brevilongium schultesii Szlach., Kolan. & Skorowska 2018 Colombia (Western South America, Southern America)
Bromheadia scirpoidea Ridl. 1900 Pen. Malaysia, Borneo (Sabah, Sarawak)
Bromheadia srilankensis Kruiz. & de Vogel 1997 Sri Lanka
Broughtonia sanguinea (Sw.) R.Br. 1813 Jamaica
Bryobium senile (Ames) Schuit., Y.P.Ng & H.A.Pedersen 2018
Bryobium singulifolium (Schltr.) Schuit., Y.P.Ng & H.A.Pedersen 2018
Bryobium subclausum (Schltr.) Schuit., Y.P.Ng & H.A.Pedersen 2018
Bulbophyllum saccoglossum J.J.Verm., Schuit. & de Vogel 2014 Papua New Guinea
Bulbophyllum saccolabioides J.J.Sm. 1929 New Guinea
Bulbophyllum sagemuelleri R.Bustam. & Kindler 2015 Philippines (Negros)
Bulbophyllum salaccense Rchb.f. 1857 Thailand to W. Malesia
Bulbophyllum salmoneum Aver. & J.J.Verm. 2012 Vietnam
Bulbophyllum saltatorium Lindl. 1837 Trop. Africa
Bulbophyllum saltatorium var. albociliatum (Finet) J.J.Verm. 1986 W. Trop. Africa to SW. Kenya and Angola
Bulbophyllum saltatorium var. calamarium (Lindl.) J.J.Verm. 1986 Sierra Leone to Angola
Bulbophyllum saltatorium var. saltatorium W. & WC. Trop. Africa
Bulbophyllum salweenensis X.H.Jin 2015 China (Yunnan)
Bulbophyllum sambiranense Jum. & H.Perrier 1912 N. & NW. Madagascar, Réunion
Bulbophyllum samoanum Schltr. 1911 Papuasia to SW. Pacific
Bulbophyllum sanderianum Rolfe 1893 Brazil (Pernambuco, Alagoas)
Bulbophyllum sandersonii (Hook.f.) Rchb.f. 1878 Trop. & S. Africa
Bulbophyllum sandersonii subsp. sandersonii Cameroon to S. Africa
Bulbophyllum sandersonii subsp. stenopetalum (Kraenzl.) J.J.Verm. 1986 W. & WC. Trop. Africa
Bulbophyllum sandrangatense Bosser 1965 ENE. Madagascar
Bulbophyllum sangae Schltr. 1905 Gabon
Bulbophyllum sanguineomaculatum Ridl. 1896 Pen. Malaysia to Sulawesi
Bulbophyllum sanguineopunctatum Seidenf. & A.D.Kerr 1974 Laos
Bulbophyllum sanguineum H.Perrier 1937 ENE. Madagascar
Bulbophyllum sanitii Seidenf. 1970 Indo-China
Bulbophyllum sannio J.J.Verm. 2008 Papua New Guinea
Bulbophyllum santoense J.J.Verm. 1993 Vanuatu
Bulbophyllum santosii Ames 1915 Philippines
Bulbophyllum sapphirinum Ames 1915 Philippines (Leyte)
Bulbophyllum sarasinorum Schltr. 1925 Sulawesi
Bulbophyllum sarawaketense (P.Royen) J.J.Verm., Schuit. & de Vogel 2014 Papua New Guinea
Bulbophyllum sarcanthiforme Ridl. 1916 New Guinea
Bulbophyllum sarcochilum J.J.Verm. & P.O'Byrne 2008 Sulawesi
Bulbophyllum sarcodanthum Schltr. 1913 New Guinea
Bulbophyllum sarcophylloides Garay, Hamer & Siegerist 1994 Darjiling to Assam
Bulbophyllum sarcophyllum (King & Pantl.) J.J.Sm. 1912 Nepal to India (Orissa) and Myanmar
Bulbophyllum sarcorhachis var. flavomarginatum H.Perrier ex Hermans 2007 N. Madagascar
Bulbophyllum sarcorhachis Schltr. 1918 Madagascar
Bulbophyllum sarcorhachis var. befaonense (Schltr.) H.Perrier 1937 ENE. Madagascar
Bulbophyllum sarcorhachis var. sarcorhachis E. Madagascar
Bulbophyllum sarcoscapum Teijsm. & Binn. 1867 W. Jawa
Bulbophyllum saronae Garay 1999 Papua New Guinea
Bulbophyllum sasakii (Hayata) J.J.Verm., Schuit. & de Vogel 2014 Taiwan
Bulbophyllum sauguetiense Schltr. 1913 New Guinea
Bulbophyllum saurocephalum subsp. oncoglossum W.Suarez 2011 Philippines
Bulbophyllum saurocephalum subsp. saurocephalum Philippines (Luzon: Mt. Banahaw)
Bulbophyllum saurocephalum Rchb.f. 1886 Philippines
Bulbophyllum savaiense Schltr. 1911 Philippines to SW. Pacific
Bulbophyllum savaiense subsp. gorumense (Schltr.) J.J.Verm. 1993 New Guinea
Bulbophyllum savaiense subsp. savaiense SW. Pacific
Bulbophyllum savaiense subsp. subcubicum (J.J.Sm.) J.J.Verm. 1993 Philippines to New Guinea
Bulbophyllum sawiense J.J.Sm. 1912 New Guinea
Bulbophyllum scaberulum (Rolfe) Bolus 1889 Trop. & S. Africa
Bulbophyllum scaberulum var. crotalicaudatum J.J.Verm. 1987 Tanzania
Bulbophyllum scaberulum var. fuerstenbergianum (De Wild.) J.J.Verm. 1986 Nigeria to WC. Trop. Africa
Bulbophyllum scaberulum var. scaberulum Trop. & S. Africa
Bulbophyllum scabratum Rchb.f. 1861 Nepal to Assam
Bulbophyllum scabrum J.J.Verm. & A.L.Lamb 1988 Borneo (G. Kinabalu)
Bulbophyllum scaphiforme J.J.Verm. 2002 China (Yunnan) to Indo-China
Bulbophyllum scaphioglossum J.J.Verm. & Rysy 2014 W. New Guinea
Bulbophyllum scaphosepalum Ridl. 1916 New Guinea
Bulbophyllum scariosum Summerh. 1953 W. & WC. Trop. Africa
Bulbophyllum sceliphron J.J.Verm. 1991 Papua New Guinea
Bulbophyllum schaiblei Cootes & Naive 2017 Philippines
Bulbophyllum schaiblei Cootes & Naive 2017 Philippines (Malesia, Asia-Tropical)
Bulbophyllum schefferi (Kuntze) Schltr. 1915 W. & C. Malesia
Bulbophyllum schillerianum Rchb.f. 1860 Queensland to N. New South Wales
Bulbophyllum schimperianum Kraenzl. 1902 W. Trop. Africa to Uganda
Bulbophyllum schinzianum Kraenzl. 1899 W. & WC. Trop. Africa
Bulbophyllum schinzianum var. irigaleae (P.J.Cribb & Pérez-Vera) J.J.Verm. 1987 W. Trop. Africa
Bulbophyllum schinzianum var. phaeopogon (Schltr.) J.J.Verm. 1986 W. & WC. Trop. Africa
Bulbophyllum schinzianum var. schinzianum W. & WC. Trop. Africa
Bulbophyllum schistopetalum Schltr. 1905 Bismarck Arch.
Bulbophyllum schizopetalum L.O.Williams 1946 New Guinea
Bulbophyllum schmidii Garay 1999 W. New Guinea
Bulbophyllum schmidtianum Rchb.f. 1865 E. India
Bulbophyllum schuitemanii J.J.Verm. 2008 Papua New Guinea
Bulbophyllum schwarzii Sieder & Kiehn 2011 Vietnam
Bulbophyllum sciaphile Bosser 1965 C. Madagascar
Bulbophyllum scintilla Ridl. 1908 Borneo (Sarawak)
Bulbophyllum scopa J.J.Verm. 1990 New Guinea
Bulbophyllum scopula Schltr. 1913 New Guinea
Bulbophyllum scorpio J.J.Verm. 2008 Papua New Guinea
Bulbophyllum scotinochiton J.J.Verm. & P.O'Byrne 2005 Sumatera
Bulbophyllum scrobiculilabre J.J.Sm. 1914 New Guinea
Bulbophyllum scutiferum J.J.Verm. 1993 New Guinea
Bulbophyllum scyphochilus Schltr. 1912 New Guinea
Bulbophyllum seabrense Campacci 2008 Brazil (Bahia)
Bulbophyllum secundum Hook.f. 1890 Himalaya to China (Yunnan) and Indo-China
Bulbophyllum seidenfadenii A.D.Kerr 1973 China (Yunnan) to Laos
Bulbophyllum semiasperum J.J.Sm. 1934 New Guinea
Bulbophyllum semiindutum J.J.Verm. & P.O'Byrne 2008 Sulawesi
Bulbophyllum semiteres Schltr. 1913 New Guinea
Bulbophyllum semiteretifolium Gagnep. 1930 Vietnam
Bulbophyllum semperflorens J.J.Sm. 1907 W. Jawa
Bulbophyllum sempiternum Ames 1920 Philippines (Leyte, Mindanao)
Bulbophyllum senghasii G.A.Fisch. & Sieder 2009 Madagascar
Bulbophyllum sensile Ames 1915 Philippines (Luzon)
Bulbophyllum sepikense W.Kittr. 1985 Papua New Guinea
Bulbophyllum septatum Schltr. 1924 N. Madagascar
Bulbophyllum septemtrionale (J.J.Sm.) J.J.Sm. 1913 Maluku to New Guinea
Bulbophyllum serra Schltr. 1913 New Guinea
Bulbophyllum serratotruncatum Seidenf. 1974 Andaman Is., Pen. Malaysia
Bulbophyllum serripetalum Schltr. 1923 New Guinea
Bulbophyllum serrulatifolium J.J.Sm. 1929 New Guinea
Bulbophyllum serrulatum Schltr. 1905 Papua New Guinea
Bulbophyllum setaceum T.P.Lin 1975 C. Taiwan
Bulbophyllum setigerum Lindl. 1838 S. Venezuela to Guyana and Brazil
Bulbophyllum setilabium Aver. 2017 Laos (Indo-China, Asia-Tropical)
Bulbophyllum setilabium Aver. 2017 Laos
Bulbophyllum setuliferum J.J.Verm. & Saw 2000 Pen. Malaysia
Bulbophyllum shanicum King & Pantl. 1897 China (SW. Yunnan) to Myanmar
Bulbophyllum shepherdii (F.Muell.) Rchb.f. 1871 SE. Queensland to NE. New South Wales
Bulbophyllum shweliense W.W.Sm. 1921 Bhutan to China (Yunnan, N. Guangdong)
Bulbophyllum sibuyanense Ames 1912 Philippines
Bulbophyllum sicyobulbon C.S.P.Parish & Rchb.f. 1874 Indo-China
Bulbophyllum siederi Garay 1999 Sumatera
Bulbophyllum sigaldiae Guillaumin 1955 Indo-China
Bulbophyllum sigmoideum Ames & C.Schweinf. 1920 Borneo (G. Kinabalu)
Bulbophyllum signatum J.J.Verm. 1996 Borneo (Sarawak)
Bulbophyllum sikapingense J.J.Sm. 1920 Sumatera
Bulbophyllum silentvalliensis M.P.Sharma & S.K.Srivast. 1993 India (Kerala)
Bulbophyllum sillemianum Rchb.f. 1884 Myanmar
Bulbophyllum simaoense D.P.Ye, Wild Orchids Yunnan: 404 (2010), contrary to Art. 39.1. (ICN 2010 China (Yunnan)
Bulbophyllum simii J.J.Verm. & A.L.Lamb 2008 Borneo (Sarawak)
Bulbophyllum simile Schltr. 1913 New Guinea
Bulbophyllum similissimum J.J.Verm. 1991 Borneo (Sabah)
Bulbophyllum simmondsii Kores 1989 Fiji
Bulbophyllum simondii Gagnep. 1950 Vietnam
Bulbophyllum simplex J.J.Verm. & P.O'Byrne 2003 Sulawesi
Bulbophyllum simplicilabellum Seidenf. 1979 Thailand
Bulbophyllum simulacrum Ames 1915 Philippines (Leyte)
Bulbophyllum sinapis J.J.Verm. & P.O'Byrne 2003 Papua New Guinea
Bulbophyllum singaporeanum Schltr. 1911 Malaya, Borneo
Bulbophyllum singulare Schltr. 1913 New Guinea
Bulbophyllum sinhoense Aver. 2007 Vietnam
Bulbophyllum skeatianum Ridl. 1915 Thailand to Pen. Malaysia
Bulbophyllum smileiphyllum J.J.Verm., Schuit. & de Vogel 2014 New Guinea
Bulbophyllum smithianum Schltr. 1911 Sumatera
Bulbophyllum smitinandii Seidenf. & Thorut 1996 Indo-China
Bulbophyllum socordine J.J.Verm. & Cootes 2008 Philippines
Bulbophyllum soidaoense (Seidenf.) J.J.Verm., Schuit. & de Vogel 2014 China (SW. Yunnan) to Thailand
Bulbophyllum solteroi R.González 1992 Mexico (Jalisco)
Bulbophyllum somae Hayata 1920 N. Taiwan
Bulbophyllum sonii Aver. & Duy 2018 Vietnam (Indo-China, Asia-Tropical)
Bulbophyllum sopoetanense Schltr. 1911 Borneo, Sulawesi
Bulbophyllum sordidum Lindl. 1840 Costa Rica to Ecuador
Bulbophyllum sororculum J.J.Verm. 2002 Sulawesi
Bulbophyllum spadiciflorum Tixier 1966 C. Vietnam
Bulbophyllum spaniostagon J.J.Verm., Schuit. & de Vogel 2014 New Guinea
Bulbophyllum spathilingue J.J.Sm. 1908 New Guinea
Bulbophyllum spathipetalum J.J.Sm. 1908 New Guinea
Bulbophyllum spathulatum (Rolfe ex E.W.Cooper) Seidenf. 1970 Sikkim to China (S. Yunnan) and Indo-China
Bulbophyllum speciosum Schltr. 1912 New Guinea
Bulbophyllum sphaenopus J.J.Verm. 2008 IW. New Guinea
Bulbophyllum sphaeracron Schltr. 1913 New Guinea
Bulbophyllum sphaericum Z.H.Tsi & H.Li 1981 China (Sichuan, SW. Yunnan)
Bulbophyllum sphaerobulbum H.Perrier 1937 ENE. Madagascar
Bulbophyllum spissum J.J.Verm. 1996 Pen. Malaysia (Pahang), Sumatera (Kep. Riau), Borneo, Sulawesi
Bulbophyllum spodotriche J.J.Verm. & P.O'Byrne 2008 Sulawesi
Bulbophyllum spongiola J.J.Verm. 1996 Papua New Guinea (?)
Bulbophyllum stabile J.J.Sm. 1911 New Guinea
Bulbophyllum staetophyton J.J.Verm. 2008 Papua New Guinea
Bulbophyllum stalagmotelos J.J.Verm. 2008 Papua New Guinea
Bulbophyllum stelis J.J.Sm. 1927 Sumatera to Jawa
Bulbophyllum stellatum Ames 1912 Philippines (Luzon)
Bulbophyllum stellula Ridl. 1916 New Guinea
Bulbophyllum stellulamontis J.J.Verm. & A.L.Lamb 2013 Borneo (Sabah)
Bulbophyllum stemonochilum J.J.Verm. 2008 SE. New Guinea
Bulbophyllum stenobulbon C.S.P.Parish & Rchb.f. 1874 Sikkim to S. China
Bulbophyllum stenochilum Schltr. 1913 New Guinea to Solomon Is.
Bulbophyllum stenomeris J.J.Verm. & P.O'Byrne 2008 Sulawesi
Bulbophyllum stenophyllum C.S.P.Parish & Rchb.f. 1874 Indo-China
Bulbophyllum stenophyton (Garay & W.Kittr.) Schuit. & de Vogel 2011 New Guinea to Vanuatu
Bulbophyllum stenorhopalon Schltr. 1921 New Guinea
Bulbophyllum stenuroides J.J.Verm. & P.O'Byrne 2011 Sulawesi
Bulbophyllum stenurum J.J.Verm. & P.O'Byrne 2003 Sulawesi
Bulbophyllum sterile (Lam.) Suresh 1988 S. India
Bulbophyllum steyermarkii Foldats 1968 W. South America to NW. Venezuela
Bulbophyllum stictanthum Schltr. 1913 New Guinea
Bulbophyllum stictosepalum Schltr. 1913 New Guinea
Bulbophyllum stipitatibulbum J.J.Sm. 1931 Borneo
Bulbophyllum stipulaceum Schltr. 1905 New Guinea
Bulbophyllum stockeri J.J.Verm. 2008 Papua New Guinea
Bulbophyllum stocksii (Benth. ex Hook.f.) J.J.Verm., Schuit. & de Vogel 2014 S. India
Bulbophyllum stolleanum Schltr. 1923 New Guinea
Bulbophyllum stolzii Schltr. 1915 Tanzania to Malawi
Bulbophyllum stormii J.J.Sm. 1907 W. Malesia
Bulbophyllum streptomorphum J.J.Verm., P.O'Byrne & A.L.Lamb 2015 Borneo (Sabah)
Bulbophyllum streptotriche J.J.Verm. 1991 Borneo (Sabah)
Bulbophyllum striatellum Ridl. 1890 Malaya, Borneo
Bulbophyllum striatulum Aver. 2016 Vietnam
Bulbophyllum striatum (Griff.) Rchb.f. 1861 Nepal to China (SE. Yunnan) and Indo-China
Bulbophyllum strigosum (Garay) Sieder & Kiehn 2009 Vietnam
Bulbophyllum stylocoryphe J.J.Verm. & P.O'Byrne 2008 Sulawesi
Bulbophyllum suavissimum Rolfe 1889 China (S. Yunnan) to N. Thailand
Bulbophyllum subaequale Ames 1923 Philippines (Luzon)
Bulbophyllum subapetalum J.J.Sm. 1915 New Guinea
Bulbophyllum subapproximatum H.Perrier 1937 N. Madagascar
Bulbophyllum subbullatum J.J.Verm. 1996 Borneo (Sarawak)
Bulbophyllum subclausum J.J.Sm. 1909 Sumatera, Borneo (Sabah)
Bulbophyllum subclavatum Schltr. 1925 EC. & SE. Madagascar
Bulbophyllum subcrenulatum Schltr. 1925 N. & ENE. Madagascar
Bulbophyllum subligaculiferum J.J.Verm. 1987 Gabon
Bulbophyllum submarmoratum J.J.Sm. 1918 W. Jawa
Bulbophyllum subpatulum J.J.Verm. 2002 New Guinea
Bulbophyllum subsecundum Schltr. 1916 N. & ENE. Madagascar
Bulbophyllum subsessile Schltr. 1924 ENE. Madagascar
Bulbophyllum subtrilobatum Schltr. 1913 New Guinea
Bulbophyllum subumbellatum Ridl. 1896 Pen. Malaysia (Johor), Borneo (Sarawak)
Bulbophyllum succedaneum J.J.Sm. 1927 Borneo
Bulbophyllum sukhakulii Seidenf. 1995 Thailand
Bulbophyllum sulcatum (Blume) Lindl. 1830 Indo-China to W. Malesia and Bali
Bulbophyllum sulfureum Schltr. 1924 Madagascar
Bulbophyllum sunipia J.J.Verm., Schuit. & de Vogel 2014 Nepal to China (Yunnan) and N. Indo-China
Bulbophyllum superfluum Kraenzl. 1929 Philippines (Luzon)
Bulbophyllum surigaense Ames & Quisumb. 1934 Philippines (Mindanao)
Bulbophyllum suriyaensis ? 2007 Thailand, Kanjanaburi
Bulbophyllum sutepense (Rolfe ex Downie) Seidenf. & Smitinand 1961 China (S. Yunnan) to Indo-China
Burlingtonia scintillulans Lem. 1852
Caladenia saccata (R.S.Rogers) Hopper & A.P.Br. 2004 New Zealand North I.
Caladenia saccharata Rchb.f. 1871 SW. Australia
Caladenia saggicola D.L.Jones 1998 Tasmania
Caladenia sanguinea D.L.Jones 1999 South Australia
Caladenia saxatilis (D.L.Jones) R.J.Bates 2008 South Australia
Caladenia saxicola A.P.Br. & G.Brockman 2007 SW. Western Australia
Caladenia septuosa D.L.Jones 1991 South Australia
Caladenia sericea Lindl. 1839 SW. Australia
Caladenia serotina Hopper & A.P.Br. 2002 SW. Australia
Caladenia sigmoidea R.S.Rogers 1938 SW. Australia
Caladenia speciosa Hopper & A.P.Br. 2001 SW. Australia
Caladenia splendens Hopper & A.P.Br. 2001 SW. Australia
Caladenia startiorum Hopper & A.P.Br. 2001 SW. Australia
Caladenia stellata D.L.Jones 1991 New South Wales, South Australia
Caladenia straminichila A.P.Br. & G.Brockman 2015 Western Australia
Caladenia stricta (R.J.Bates) R.J.Bates 1987 SE. South Australia
Caladenia strigosa (D.L.Jones) R.J.Bates 2008 South Australia
Caladenia subglabriphylla (R.J.Bates) M.A.Clem. 2015 South Australia
Caladenia subtilis D.L.Jones 1999 New South Wales
Caladenia swartsiorum A.P.Br. & G.Brockman 2015 Western Australia
Caladenia sylvicola D.L.Jones 1998 Tasmania
Calanthe saccata J.J.Sm. 1900 Maluku (Ambon)
Calanthe sacculata Schltr. 1919 China (Chongqing, Guizhou)
Calanthe salaccensis J.J.Sm. 1910 W. Malesia
Calanthe sandsii P.J.Cribb 2009 Sulawesi
Calanthe scaposa Z.H.Tsi & K.Y.Lang 1985 Tibet
Calanthe secunda P.J.Cribb 2009 Lesser Sunda Is. (Flores)
Calanthe seranica J.J.Sm. 1928 Maluku (C. Seram)
Calanthe siargaoensis M.Leon, Naive & Cootes 2017 Philippines (Malesia, Asia-Tropical)
Calanthe simplex Seidenf. 1975 China (SW. Yunnan) to N. Thailand
Calanthe sinica Z.H.Tsi 1995 China (SE. Yunnan: Wenshan)
Calanthe solomonensis P.J.Cribb & D.A.Clayton 2011 Solomon Is. (Bougainville, Guadalcanal)
Calanthe spathoglottoides Schltr. 1912 Papua New Guinea
Calanthe speciosa (Blume) Lindl. 1833 China (Hong Kong) to Nansei-shoto, Pen. Thailand to Malesia
Calanthe stella P.J.Cribb 2009 W. New Guinea (Vogelkop Pen.)
Calanthe striata R.Br. ex Spreng. 1826 China (Hunan), S. Korea, SC. & S. Japan to SW. Taiwan
Calanthe succedanea Gagnep. 1931 Indo-China
Calanthe sylvatica (Thouars) Lindl. 1833 Trop. & S. Africa, W. Indian Ocean
Calochilus sandrae D.L.Jones 2006 New South Wales
Calochilus stramenicola D.L.Jones 2006 SW. Australia
Caluera surinamensis Dodson & Determann 1983 N. South America to Brazil (Pará)
Campylocentrum schiedei (Rchb.f.) Benth. ex Hemsl. 1884 Mexico to C. America, Jamaica
Campylocentrum schlechterianum E.M.Pessoa & M.Alves 2015 Brazil (Santa Catarina)
Campylocentrum schneeanum Foldats 1961 N. Venezuela, Ecuador (Pichincha)
Campylocentrum sellowii (Rchb.f.) Rolfe 1903 Brazil
Campylocentrum serranum E.M.Pessoa & M.Alves 2015 Brazil (Pernambuco)
Campylocentrum spannagelii Hoehne 1938 Brazil (Rio de Janeiro)
Campylocentrum steyermarkii Foldats 1968 Venezuela to Guyana
Capanemia superflua (Rchb.f.) Garay 1967 SE. & S. Brazil to Argentina (Misiones)
Catasetum saccatum Lindl. 1840 S. Trop. America
Catasetum samaniegoi Dodson 1984 Ecuador (Loja)
Catasetum sanguineum Lindl. & Paxton 1851 Colombia to Venezuela
Catasetum schmidtianum F.E.L.Miranda & K.G.Lacerda 1992 Brazil (Mato Grosso)
Catasetum schunkei Dodson & D.E.Benn. 1989 Peru
Catasetum schweinfurthii D.E.Benn. & Christenson 1998 Peru
Catasetum seccoi M.F.F.Silva & A.T.Oliveira 1999 Brazil (Maranhão)
Catasetum semicirculatum F.E.L.Miranda 1986 Brazil (Rondônia)
Catasetum socco (Vell.) Hoehne 1952 SE. & S. Brazil
Catasetum spitzii Hoehne 1941 Brazil (Rondônia, Goiás, Brasília, D.F., Tocantins)
Catasetum stenoglossum Pabst 1955 N. Brazil
Catasetum stevensonii Dodson 1978 SE. Ecuador to Peru
Cattleya sanguiloba (Withner) Van den Berg 2008 Brazil (Bahia)
Cattleya schilleriana Rchb.f. 1857 Brazil (E. Bahia to Espírito Santo)
Cattleya schofieldiana Rchb.f. 1882 Brazil (Espírito Santo to Rio de Janeiro)
Cattleya schroederae (Rchb.f.) Sander 1888 NE. Colombia
Cattleya sincorana (Schltr.) Van den Berg 2008 Brazil (Bahia)
Cattleya storeyi H.G.Jones 1977 Windward Is. (Barbados)
Caucaea sanguinolenta (Lindl.) N.H.Williams & M.W.Chase 2001 W. South America to Venezuela
Cephalanthera subaphylla f. leucophylla Suetsugu 2017 Honshu (Japan, Eastern Asia, Asia-Temperate)
Ceratostylis sacculata J.J.Sm. 1929 New Guinea
Ceratostylis sarasinorum Schuit., Y.P.Ng & H.A.Pedersen 2018
Ceratostylis sarawakensis Schuit., Y.P.Ng & H.A.Pedersen 2018
Ceratostylis sarcostomatoides J.J.Sm. 1927 W. Sumatera
Ceratostylis sayeri Schltr. 1910 New Guinea
Ceratostylis scariosa Ridl. 1923 N. Sumatera
Ceratostylis scirpoides Schltr. 1905 Papua New Guinea
Ceratostylis selebensis J.J.Sm. 1933 Sulawesi
Ceratostylis senilis Rchb.f. 1878 Philippines
Ceratostylis sessilis J.J.Sm. 1911 New Guinea
Ceratostylis siamensis Rolfe ex Downie 1925 Indo-China
Ceratostylis sima J.J.Sm. 1908 Sulawesi
Ceratostylis simplex Blume 1825 W. & C. Jawa
Ceratostylis spathulata Schltr. 1905 Papua New Guinea
Ceratostylis spathulata var. spathulata Papua New Guinea
Ceratostylis spathulata var. tenerrima Schltr. 1912 Papua New Guinea
Ceratostylis sphaerocephala Schltr. 1922 New Guinea
Ceratostylis steenisii J.J.Sm. 1943 N. Sumatera
Ceratostylis subapoda Schuit., Y.P.Ng & H.A.Pedersen 2018
Ceratostylis subcoerulea P.Royen 1979 Papua New Guinea
Ceratostylis subcoerulea var. pulcherrima P.Royen 1979 Papua New Guinea
Ceratostylis subcoerulea var. subcoerulea Papua New Guinea
Ceratostylis subulata Blume 1825 Trop. Asia to Vanuatu
Ceratostylis succulenta J.J.Sm. 1927 W. Sumatera (Bukit Tinggi)
Chamaegastrodia shikokiana Makino & F.Maek. 1935 Assam to S. Japan
Chaubardia surinamensis Rchb.f. 1852 S. Trop. America
Chaubardiella serrulata D.E.Benn. & Christenson 1998 Peru
Chaubardiella subquadrata (Schltr.) Garay 1969 Costa Rica to Ecuador
Cheirostylis schliebenii Mansf. ex Schlieb. 1937
Cheirostylis serpens Aver. 2005 N. Vietnam to China (Guangxi)
Cheirostylis sessanica A.N.Rao 1988 Arunachal Pradesh
Cheirostylis sherriffii N.Pearce & P.J.Cribb 1999 C. & S. Bhutan
Cheirostylis spathulata J.J.Sm. 1927 Indo-China, Borneo, Jawa
Chelonistele senagangensis J.J.Wood 2008 Borneo (Sabah)
Chelonistele sulphurea (Blume) Pfitzer 1907 W. Malesia to Philippines
Chelonistele sulphurea var. crassifolia (Carr) de Vogel 1984 Borneo (Sabah)
Chelonistele sulphurea var. sulphurea W. Malesia to Philippines
Chiloglottis seminuda D.L.Jones 1991 CE. New South Wales
Chiloglottis sphaerula D.L.Jones 2006 New South Wales
Chiloglottis sphyrnoides D.L.Jones 1991 SE. Queensland to NE. New South Wales
Chiloglottis sylvestris D.L.Jones & M.A.Clem. 1987 SE. Queensland to CE. New South Wales
Chiloschista segawae (Masam.) Masam. & Fukuy. 1938 SC. Taiwan
Chiloschista sweelimii Holttum 1966 Pen. Malaysia (N. Perak)
Chloraea septentrionalis M.N.Correa 1969 Peru (La Libertad)
Chloraea speciosa Poepp. 1833 SC. & S. Chile, Argentina (Neuquén, Chubut)
Chloraea subpandurata Hauman 1920 NW. Argentina
Chondrorhyncha suarezii Dodson 1989 Ecuador
Chroniochilus sinicus L.J.Chen & Z.J.Liu 2010 China (Yunnan)
Cirrhaea seidelii Pabst 1972 Brazil (Espírito Santo)
Cirrhaea silvana V.P.Castro & Campacci 1990 Brazil (Bahia)
Cleisostoma saccatum (Seidenf. & Garay) R.Rice 2018
Cleisostoma sagittatum Blume 1825 Sumatera to Philippines
Cleisostoma samarindae (Schltr.) Garay 1972 Borneo
Cleisostoma schneideri Choltco 2009 N. Thailand
Cleisostoma scortechinii (Hook.f.) Garay 1972 Indo-China to W. & S. Malesia
Cleisostoma simondii var. simondii Nepal to China (S. Yunnan) and Indo-China
Cleisostoma simondii (Gagnep.) Seidenf. 1975 Nepal to S. China and Indo-China
Cleisostoma simondii var. guangdongense Z.H.Tsi 1983 SE. China to Hainan
Cleisostoma sororium (J.J.Sm.) Garay 1972 Sulawesi to Maluku
Cleisostoma stimulatrix Ormerod 1996 Papua New Guinea
Cleisostoma striatum (Rchb.f.) N.E.Br. 1882 Sikkim to China (Yunnan, SW. Guangxi) and N. Borneo
Cleisostoma striolatum (Rchb.f.) Garay 1972 Philippines
Cleisostoma strongyloides (Ridl.) Garay 1972 Borneo (Sarawak)
Cleisostoma suaveolens Blume 1825 W. Malesia to Bali
Cleisostoma subulatum Blume 1825 E. Himalaya to Malesia
Cleisostoma subulifolium Aver. & Averyanova 2006 Vietnam
Cleisostoma suffusum (Ridl.) Garay 1972 Pen. Malaysia to Sumatera
Cleisostoma sumbavense (J.J.Sm.) Garay 1972 Lesser Sunda Is.
Cleistes silveirana Hoehne & Schltr. 1925 Brazil (São Paulo)
Cleistes speciosa Gardner 1842 WC. & SE. Brazil
Cleistes strangii Pabst 1977
Cleistes strangii Pabst 1975 Brazil (Minas Gerais)
Cleistes stricta (C.Schweinf.) Garay & Dunst. 1972 SW. & S. Venezuela
Clematepistephium smilacifolium (Rchb.f.) N.Hallé 1977 New Caledonia
Coccineorchis standleyi (Ames) Garay 1982 C. America to Colombia
Coelogyne salmonicolor Rchb.f. 1883 Sumatera
Coelogyne salvaneraniana W.Suarez 2011 Philippines
Coelogyne sanderae Kraenzl. ex O'Brien 1893 Bangladesh to China (S. Yunnan) and Indo-China
Coelogyne sanderiana Rchb.f. 1887 W. Malesia
Coelogyne sarasinorum Kraenzl. 1907 Sulawesi
Coelogyne schilleriana Rchb.f. & K.Koch 1858 Myanmar to Thailand
Coelogyne schultesii S.K.Jain & S.Das 1978 Nepal to Indo-China
Coelogyne schwadtkii Danell 2016 Thailand
Coelogyne septemcostata J.J.Sm. 1903 Pen. Thailand to W. Malesia
Coelogyne sparsa Rchb.f. 1883 Philippines
Coelogyne speciosa (Blume) Lindl. 1833 SW. Malesia
Coelogyne speciosa subsp. fimbriata (J.J.Sm.) Gravend. 1999 Sumatera
Coelogyne speciosa subsp. incarnata Gravend. 1999 Sumatera to Jawa
Coelogyne speciosa subsp. speciosa Jawa to Lesser Sunda Is. (Flores)
Coelogyne squamulosa J.J.Sm. 1908 Borneo (Sarawak, Kalimantan)
Coelogyne steenisii J.J.Sm. 1932 S. Sumatera
Coelogyne stenobulbum Schltr. 1911 W. Sumatera
Coelogyne stenochila Hook.f. 1890 Pen. Malaysia
Coelogyne stipitibulbum Holttum 1947 Pen. Malaysia (Cameron Highlands)
Coelogyne stricta (D.Don) Schltr. 1919 Himalaya to China (Yunnan) and Indo-China
Coelogyne suaveolens (Lindl.) Hook.f. 1890 Arunachal Pradesh to China (S. Yunnan)
Coelogyne sudora Schuit. & de Vogel 2006 Laos
Coelogyne sulcata Elis.George & J.-C.George 2008 Philippines (Mindanao)
Coelogyne susanae P.J.Cribb & B.A.Lewis 1991 Bismarck Arch. to Solomon Is.
Coelogyne swaniana Rolfe 1894 W. Malesia
Collabium simplex Rchb.f. 1881 Malesia
Comparettia saccata Poepp. & Endl. 1836 Peru (Junín)
Comparettia schaeferi (Senghas) M.W.Chase & N.H.Williams 2008 Peru
Comparettia seegeri (Senghas, Leferenz & I.Bock) M.W.Chase & N.H.Williams 2008 Bolivia
Comparettia serrilabia (C.Schweinf.) M.W.Chase & N.H.Williams 2008 Peru (Cusco)
Comparettia sillarensis (Dodson & R.Vásquez) M.W.Chase & N.H.Williams 2008 Bolivia
Comparettia sotoana Pupulin & G.Merino 2010 Ecuador
Comparettia speciosa Rchb.f. 1878 SE. Ecuador to Peru
Comparettia splendens Schltr. 1922 Bolivia
Comparettia stenochila (Lindl.) M.W.Chase & N.H.Williams 2008 NW. Venezuela
Comparettia suareziorum (Kolan. , Szlach. & Mystkowska ) J.M.H.Shaw 2017 Ecuador (Western South America, Southern America)
Comparettia suareziorum (Kolan., Szlach. & Mystkowska) J.M.H.Shaw 2017 Ecuador
Conchidium spirodelum (Aver.) Ormerod 2012 Vietnam
Conchidium summerhayesianum (A.D.Hawkes & A.H.Heller) Ormerod 2012 Myanmar
Corallorhiza striata Lindl. 1840 Canada to W. & N. U.S.A., Mexico
Corallorhiza striata var. involuta (Greenm.) Freudenst. 1997 Mexico
Corallorhiza striata var. striata Canada to W. & N. U.S.A., Mexico
Corallorhiza striata var. vreelandii (Rydb.) L.O.Williams 1934 WC. U.S.A.
Corunastylis stephensonii D.L.Jones 2013
Coryanthes schmidtii G.Gerlach 2017 Mato Grosso (Brazil West-Central, Brazil, Southern America)
Coryanthes schmidtii G.Gerlach 2017 Brazil (Mato Grosso)
Coryanthes seegeri G.Gerlach 1987 Peru (San Martín)
Coryanthes selbyana Archila 2007 Guatemala
Coryanthes senghasiana G.Gerlach 1988 SE. Colombia to SW. Venezuela and N. Peru (
Coryanthes speciosa Hook. 1831 Trinidad-Tobago to Brazil
Coryanthes speciosa var. espritosantense Ruschi 1975 SE. Brazil (I. Combóios)
Coryanthes speciosa var. speciosa Trinidad-Tobago to Brazil
Coryanthes speciosa var. sumneriana (Lindl.) G.Gerlach 1993 Brazil
Corybas sagittatus S.P.Lyon 2016 Papua New Guinea
Corybas sanctigeorgianus Lehnebach 2016 New Zealand North I.
Corybas saprophyticus (Schltr.) Schltr. 1923 New Guinea
Corybas scutellifer J.B.Comber & J.Dransf. 1995 N. Sumatera
Corybas selangorensis J.Dransf. & G.Sm. 1986 Pen. Malaysia
Corybas serpentinus J.Dransf. 1986 Borneo (Sabah)
Corybas sexalatus J.J.Sm. 1929 New Guinea
Corybas simbuensis P.Royen 1983 New Guinea
Corybas sinii Tang & F.T.Wang 1951 China (Guangxi), C. Taiwan
Corybas smithianus Schltr. 1923 New Guinea
Corybas solomonensis P.Royen 1983 Solomon Is. (Bougainville)
Corybas speculum (Schltr.) Schltr. 1923 New Guinea
Corybas stenotribonos J.B.Comber & J.Dransf. 1995 N. Sumatera
Corybas striatus (Schltr.) Schltr. 1923 New Guinea
Corybas subalpinus P.Royen 1979 New Guinea
Corybas sulcatus (M.A.Clem. & D.L.Jones) G.N.Backh. 2010 Macquarie Is.
Cranichis saccata Ames 1923 Costa Rica
Cranichis schlechteri Szlach. & Kolan. 2013 Colombia
Cranichis scripta Kraenzl. 1913 WC. & E. Brazil
Cranichis silvicola Renz ex Kolan. & Szlach. 2014 Colombia to Venezuela
Cranichis sparrei Garay 1978 Ecuador
Cranichis speciosa Lex. 1825
Cranichis subumbellata A.Rich. & Galeotti 1845 C. & S. Mexico to Guatemala
Cranichis sylvatica A.Rich. & Galeotti 1845 S. Mexico to C. America
Crepidium saccatum (Ridl.) Szlach. 1995 W. Sumatera
Crepidium sagittatum (J.J.Sm.) Szlach. 1995 W. Jawa
Crepidium sagittiflorum (Blume ex J.J.Sm.) Marg. 2002 Maluku
Crepidium samoense (Schltr.) Marg. 2002 Fiji, Samoa
Crepidium saprophytum (King & Pantl.) A.N.Rao 2000 Sikkim (Chunthang)
Crepidium schlechteri (Rolfe) M.A.Clem. & D.L.Jones 1996 Fiji
Crepidium schumannianum (Schltr.) Szlach. 1995 New Guinea
Crepidium sciaphilum (Schltr.) Szlach. 1995 New Guinea to Bismarck Arch.
Crepidium segaarense (Kraenzl.) M.A.Clem. & D.L.Jones 1996 New Guinea
Crepidium seidenfadenianum (Szlach., Marg. & Rutk.) Schuit. & de Vogel 2011 Sumatera, New Guinea
Crepidium seleniglossum (Schltr.) Szlach. 1995 New Guinea
Crepidium setipes (Schltr.) Szlach. 1995 Caroline Is.
Crepidium sichuanicum (Tang & F.T.Wang ex S.C.Chen) S.C.Chen & J.J.Wood 2009 China (Sichuan: Guanxian)
Crepidium slamatense (J.J.Sm.) Marg. 2012 S. Sumatera to Jawa
Crepidium soleiforme (J.J.Sm.) Szlach. 1995 W. Jawa
Crepidium sororium (J.J.Sm.) Szlach. 1995