prednisone: a dehydrogenated analogue of cortisol (trade names Orasone or Deltasone or Liquid Pred or Meticorten); used as an anti-inflammatory drug in the treatment of arthritis and as an immunosuppressant
dryadella: comprises tropical American species usually placed in genus Masdevallia: very dwarf plants having short tufted and usually unifoliate stems with usually solitary flowers