 With the exception of A. laevigatum , all species have a thin separating layer , the cortex , between the hymenium and the tomentum . A cortex is also present on many Stereum fungi ( on a broader front ) and serves to bend up the fruit body . As this cortex is missing on A. laevigatum , its fruit body lies flat on the bark . 
 With the exception of A. laevigatum , all species <a href='got' title='1'><mark>have</mark></a> a thin separating layer , the cortex , between the hymenium and the tomentum . A cortex <a href='drop_aux' title='2'><mark>is</mark></a>also present on many Stereum fungi ( on a broader front ) and <a href='uninflect' title='3'><mark>serves</mark></a> to bend up the fruit body . As this cortex is missing on A. laevigatum , its fruit body <a href='uninflect' title='4'><mark>lies</mark></a> flat on the bark . 
Wit da exception of A. laevigatum , alll species got a thin separating layer , tdacortex , between thdaymenium and the tomentum . A cortex also present on many Stereum fungi ( on a broader front ) and serve to bend up thedauit body . As dis cortex is missing on A. laevigatum , its fruit body lie flat on the bark .