 Verpa bohemica is a species of fungus in the family <unk> . Commonly known as the early morel ( or early false morel ) or the wrinkled thimble @-@ cap , it is one of several species known informally as a " false morel " . The mushroom has a pale yellow or brown thimble @-@ shaped cap — 2 to 4 cm ( 0 @.@ 8 to 1 @.@ 6 in ) in diameter by 2 to 5 cm ( 0 @.@ 8 to 2 @.@ 0 in ) long — that has a surface wrinkled and ribbed with brain @-@ like <unk> . The cap hangs from the top of a lighter @-@ colored , brittle stem that measures up to 12 cm ( 4 @.@ 7 in ) long by 1 to 2 @.@ 5 cm ( 0 @.@ 4 to 1 @.@ 0 in ) thick . <unk> , the mushroom is distinguished by its large spores , typically 60 – 80 by 15 – 18 µm , and the presence of only two spores per <unk> . 
