Mana Mushrooms

From site:

The British Mycological Society (BMS) was founded in 1896 and has some 2000 members from many countries around the world, reflecting its international status. Its sole objective is to promote mycology in all its aspects.

http://www.britmycolsoc.org.uk

From site:

NAMA, the North American Mycological Association, is a non-profit organization of amateur and professional mycologists with more than 60 affiliated local mycological clubs throughout North America. NAMA's mission is "to promote, pursue, and advance the science of mycology."

http://www.namyco.org