Subgenus Paphiopedilum
         Section Paphiopedilum
                  Paphiopedilum charlesworthii
                  The Paphiopedilum henryanum complex
                           Paphiopedilum henryanum
                           Paphiopedilum hermannii
                  Paphiopedilum markianum
                  The Paphiopedilum insigne complex
                           Paphiopedilum barbigerum
                           Paphiopedilum helenae
                           Paphiopedilum tranlienianum
                           Paphiopedilum exul
                           Paphiopedilum insigne
                  The Paphiopedilum villosum complex
                           Paphiopedilum gratixianum
                           Paphiopedilum boxallii
                           Paphiopedilum villosum
         Section Ceratopetalum
                  Paphiopedilum fairrieanum
         Section Stictopetalum
                  The Paphiopedilum hirsutissimum complex
                           Paphiopedilum esquirolei
                           Paphiopedilum hirsutissimum
         Section Thiopetalum
                  Paphiopedilum druryi
                  Paphiopedilum spicerianum
Subgenus Sigmatopetalum
         Section Sigmatopetalum
                  Paphiopedilum venustum
         Section Spathopetalum
                  Subsection Macronodium
                           The Paphiopedilum hookerae complex
                                    Paphiopedilum hookerae
                                    Paphiopedilum volonteanum
                                    Paphiopedilum sangii
                  Subsection Spathopetalum
                           Paphiopedilum appletonianum
                           Paphiopedilum bullenianum
                           Paphiopedilum mohrianum
                           Paphiopedilum cerveranum
                  Subsection Blepharopetalum
                           Paphiopedilum mastersianum
                           Paphiopedilum papuanum
                           The Paphiopedilum violascens complex
                                    Paphiopedilum violascens
                                    Paphiopedilum bougainvilleanum
                                    Paphiopedilum wentworthianum
         Section Punctatum
                           The Paphiopedilum tonsum complex
                                    Paphiopedilum tonsum
                                    Paphiopedilum braemii
         Section Planipetalum
                           Paphiopedilum purpuratum
                           Paphiopedilum sukhakluii
                           Paphiopedilum wardii