Toxicological Trivia from March 23, 2010: Teófilo Herrera, emeritus researcher at UNAM, in Mexico, said in an interview that, according to estimation in  the world has a  million and a half varieties of mushrooms, while in Mexico there is 60 thousand, which are known only on:
a) 4.5%;
b) 17%;
c) 34%.

Correct Answer a.Read more in Spanish to article: Expert talks about Mexican mushrooms