Leucocoprinus cretaceus is a species of fungus in the family Agaricaceae. It is widespread in tropical areas, and has a scattered distribution in South America. Five species of Leucocoprinus collected recently in Northern Argentina and Paraguay were identified. Four of them (L. birnbaumii, L. cepistipes, L. cretaceous, and L. straminellus) were reported for the first time in Paraguay and later, three (Leucocoprinus birnbaumi, L. cepistipes, and L. straminellus) were reported in northeastern Argentina. Fruit bodies of the saprobic fungus grow in bundles or in groups on woodchips, sawdust, and compost heaps, and are found in greenhouses as well as outdoors (source : wikepidea )