Neottia amoena – synonym of Spiranthes sinensis
Neottia australis – synonym of Spiranthes sinensis
Neottia crispata – synonym of Spiranthes sinensis
Neottia flexuosa – synonym of Spiranthes sinensis
Neottia grandis – synonym of Goodyera rubicunda
Neottia longifolia – synonym of Lepidogyne longifolia
Neottia pantanis – synonym of Pachystoma pubescens
Neottia parviflora – synonym of Spiranthes sinensis
Neottia pudica – synonym of Spiranthes sinensis
Neottia rubicunda – synonym of Goodyera rubicunda
Neottia sinensis – synonym of Spiranthes sinensis
Neottia strateumatica – synonym of Zeuxine strateumatica
Neottia viridiflora – synonym of Goodyera viridiflora
Nephelaphyllum papuanum – synonym of Collabium vesicatum
Nervilia carinata – synonym of Nervilia aragoana
Nervilia crispata – synonym of Nervilia crociformis
Nervilia dallachyana – synonym of Nervilia plicata
Nervilia discolor – synonym of Nervilia plicata
Nervilia discolor (Blume) Schltr. var. picta – synonym of Nervilia plicata
Nervilia fimbriata – synonym of Nervilia crociformis
Nervilia flabelliformis – synonym of Nervilia aragoana
Nervilia maliana – synonym of Nervilia punctata
Nervilia porphyrophylla – synonym of Nervilia plicata
Nervilia prainiana – synonym of Nervilia crociformis
Nervilia punctata – synonym of Nervilia punctata
Nervilia punctata (Blume) Makino var. papuana – synonym of Nervilia punctata
Nervilia tibetensis – synonym of Nervilia aragoana
Nervilia velutina – synonym of Nervilia plicata
Nervilia yaeyamensis – synonym of Nervilia aragoana
Neuwiedia amboinensis – synonym of Neuwiedia veratrifolia
Neuwiedia calanthoides – synonym of Neuwiedia veratrifolia
Neuwiedia cucullata – synonym of Neuwiedia veratrifolia
Neuwiedia lindleyi – synonym of Neuwiedia veratrifolia
Niemeyera stylidioides – synonym of Apostasia wallichii
Not Dendrobium convolutum – synonym of Dendrobium contextum
Not Dendrobium delicatum – synonym of Dendrobium leptophyton
Not Dendrobium hepaticum – synonym of Dendrobium erythraeum
Note: We fail to see any appreciable difference between D. masonii – synonym of Diplocaulobium stelliferum