The death cap mushroom is one of the deadliest poison fungi on earth. Few effective treatments are available. But a team of Chinese and Australian scientists say they've made a leap forward.

Scientists who study mushrooms get a boost from a network of sophisticated aficionados who tromp through the forests observing oddball species and sharing valuable information about their finds.

Psilocybin, the hallucinogenic substance found in "magic" mushrooms, appears to relieve the symptoms of major depression.