Distinguished by a prominent pouchlike sac which resembles a ballroom slipper and often decorated with warts, hairs, or stripes, the flowers of slipper orchids may be ugly or pretty, depending on your point of view. In either case, they are captivating to amateur and professional orchids growers alike and indeed may be the most poplar group of orchids in cultivation. The tropical slipper orchids in cultivation come from two major genera, Paphiopedilum...