Cypripedium calceolus L.
Placement status: name or taxon excluded (unspecific) (Supposed to be present in Greece (Tutin & al. 1980: 69), but not substantiated by material seen and possibly based on a single report by Spruner (c. 1840), apparently a field observation (Halácsy 1904: 326). Orchid specialists have speculated that it may refer to leaves of Veratrum album.)