 The closely related species Verpa conica typically has a smooth cap , although specimens with wrinkled caps are known . V. conica may be distinguished microscopically by its eight @-@ spored asci . Its North American range extends much further south than V. bohemica . Another similar group of species are the " half @-@ free " morels , Morchella semilibera and others , which have a honeycombed cap that is attached to the stalk for about half of its length , and with ridges that are darker than the pits . Additionally , a cross @-@ sectioned stem of a specimen of M. semilibera is hollow , while V. bohemica usually has cottony wisps in the stem , and M. semilibera usually has vertical perforations near the base , while V. bohemica lacks them . Verpa bohemica may be reliably distinguished from all similar species by its much larger spores . 
 The closely related species Verpa conica typically <a href='got' title='1'><mark>has</mark></a> a smooth cap , although specimens with wrinkled caps are known . V. conica may be distinguished microscopically by its eight @-@ spored asci . Its North American range <a href='uninflect' title='2'><mark>extends</mark></a> much further south than V. bohemica . Another similar group of species <a href='drop_aux' title='3'><mark>are</mark></a>the " half @-@ free " morels , Morchella semilibera and others , which <a href='got' title='4'><mark>have</mark></a> a honeycombed cap <a href='null_relcl' title='5'><mark>that</mark></a>is attached to the stalk for about half of its length , and with ridges <a href='null_relcl' title='6'><mark>that</mark></a><a href='drop_aux' title='7'><mark>are</mark></a>darker than the pits . Additionally , a cross @-@ sectioned stem of a specimen of M. semilibera <a href='drop_aux' title='8'><mark>is</mark></a>hollow , while V. bohemica usually <a href='got' title='9'><mark>has</mark></a> cottony wisps in the stem , and M. semilibera usually <a href='got' title='10'><mark>has</mark></a> vertical perforations near the base , while V. bohemica <a href='uninflect' title='11'><mark>lacks</mark></a> them . Verpa bohemica may be reliably distinguished from all similar species by its much larger spores . 
Da closely related species Verpa conica typically got a smooth cap , although specimens witt wrinkled caps r known . V. conica may be distinguished microscopically by its eight @-@ spored asci . Its North American range extend much further south than V. bohemica . Another similar group of species the " half @-@ free " morels , Morchella semilibera and others , which got a honeycombed cap is attached to the stalk for abt half of its length , and with ridges darker than tdapits . Additionally , a cross @-@ sectioned stem of a specimen of M. semilibera hollow , while V. bohemica usually got cottony wisps in the stem , and M. semilibera usually got vertical perforations near the base , while V. bohemica lack them . Verpa bohemica may b reliably distinguished from all similar species by its much larger spores .