Raciborskanthos
Radinocion
Ramonia
Rangaeris
Ranorchis
Rauhiella
Raycadenco
Regalia
Regnellia
Reichantha
Reichenbachanthus
Renanstylis
Renanthera
Renantherella
Renata
Renzorchis
Restrepia
Restrepiella
Restrepiopsis
Rhaesteria
Rhamphidia
Rhamphorhynchus
Rhaphidorhynchus
Rhetinantha
Rhinerrhiza
Rhinerrhizopsis
Rhinocerotidium
Rhinocidium
Rhinorchis
Rhipidoglossum
Rhipidorchis
Rhizanthella
Rhizanthera
Rhomboda
Rhynchadenia
Rhynchanthera
Rhynchogyna
Rhyncholaelia
Rhynchopera
Rhynchophreatia
Rhynchostele
Rhynchostylis
Rhytionanthos
Ridleya
Ridleyella
Rimacola
Risleya
Ritaia
Robiquetia
Rodrigoa
Rodriguezia
Rodrigueziella
Rodrigueziopsis
Roeperocharis
Roezliella
Rolfea
Rolfeella
Ronaldella
Roptrostemon
Rossioglossum
Rubellia
Rudolfiella
Rusbyella
