Studies on Oberonia 5 (Orchidaceae: Malaxideae). Twenty-four new synonyms, and a corrected spelling

The following 24 new synonyms in the orchid genus Oberonia are proposed, correct name (+ synonym(s)): O. bicornis (+ O. tenuis); O. brunoniana [lectotype here designated] (+ O. santapaui lectotype and epitype here designated); O. caulescens (+ O. katakiana); O. complanata (+ O. flavescens); O. costeriana (+ O. elmeri, + O. obesa, + O. gigantea); O. insectifera (+ O. toppingii, + O. basilanensis, + O. attenuata); O. langbianensis (+ O. sulcata); O. merapiensis (+ O. salakana); O. mucronata (+ O. manipurensis); O. obcordata (+ O. delicata); O. padangensis (+ O. fungum-olens [lectotype here designated], + O. patentifolia); O. punctata (+ O. subanajamensis, + O. caprina); O. rufilabris (+O. thisbe,+O. nepalensis);O. subligaculifera (+O. evrardii,+O. kanburiensis);O. titania(+ O. crateriformis, + O. rimachila). The flowers of several species are illustrated with scanning electron micrographs. The spellings of the species epithets of Dendrobium odoardi, Oberonia odoardi, Aphyllorchis odoardi, Bulbophyllum odoardi, Trichotosia odoardi, Pandanus odoardi and Coelogyne odoardi are corrected to odoardoi. Problems with the illustrations in the protologue of O. nayarii and O. balakrishnanii are highlighted. Several inadvertent lectotypifications are documented