Paphiopedilum macranthum.

Described by Franch. J. Bot. (Morot) 8:265 (1894) From China (Sichuan). 

Awaiting Award Judging at the D.O.G. Conference held at Dresden, Germany, March 2004. 

Grows well outdoors in a well drained medium with some moisture retentive element.   Needs shady location under trees with low branches or shrubs avoiding direct sunlight.   Does not enjoy being waterlogged.   Also needs air movement.   Avoid heavy frosts be lifting and removing to a frost free environment at such times.   Perhaps best to place in a pot then submerge the pot into the ground.