Leucopaxillus albissimus  (Peck) Singer (1939)

This large mushroom can form patches consisting of tens of fruitbodies. In some years it is the most common member of the Genus in California. It can be observed mainly in  cold, wet areas. It has an unpleasant odor of garlic, mixed with sewer evaporations and according to various mycophagists it remains insipid even when well cooked.