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|Noun||1.||Helvella sulcata - a helvella with an irregularly convoluted cap that is dark brown when young and becomes dull grey with age; the lower surface of the cap is smooth and pale grey; the stalk is thick and deeply fluted|
genus Helvella - type genus of the Helvellaceae
helvella - any fungus of the genus Helvella having the ascocarps stalked or pleated or often in folds