How are Obregonia and  Trichodiadema different from each other?
Trichodiadema Trichodiadema is a genus of succulent plants of the family Aizoaceae.
Tricholoma aurantium Tricholoma aurantium, commonly known as the golden orange tricholoma, is a mushroom of the agaric genus "Tricholoma". Originally described by Jacob Christian Schäffer in 1774, it was transferred to the genus "Tricholoma" by Adalbert Ricken in 1915.