The Anti-hiccup Fungus is a treasure in Pikmin 2 that is actually a parasol mushroom. It is found in the Wistful Wild, near the Dream Den. It is the 13th treasure on the List of Pikmin 2 treasures.
"What a shocking taste! ...I suppose young people like Louie might find it tasty, but the flavor is too intense for me!"
"One bite of this and the surprisingly earthy flavor will send your hiccups packing! Older individuals with a history of heart conditions should devour this with caution!"