 The fungus has a wide distribution in North America , and is particularly common in the Pacific Northwest ; its range extends north to Alaska and east to North Carolina . In the Puget Sound area of the U.S. state of Washington , it is found in association with Douglas @-@ fir , fir , and hemlock . Along the Oregon Coast it has been collected under lodgepole pine . In addition to North America , the mushroom is widespread in Europe , and its presence has been documented in Italy , Germany , and Scotland . The species is common in the latter location , but becoming increasingly rare in several European countries , such as Norway , The Netherlands , and the Czech Republic . Increased pollution in central Europe has been suggested as one possible factor in the mushroom 's decline there . Reports from Iran in 2008 and Korea in 2010 were the first outside Europe and North America . 
 The fungus <a href='got' title='1'><mark>has</mark></a> a wide distribution in North America , and <a href='drop_aux' title='2'><mark>is</mark></a>particularly common in the Pacific Northwest ; its range <a href='uninflect' title='3'><mark>extends</mark></a> north to Alaska and east to North Carolina . In the Puget Sound area of the U.S. state of Washington , it is found in association with Douglas @-@ fir , fir , and hemlock . Along the Oregon Coast it <a href='been_done' title='4'><mark>has</mark></a> been collected under lodgepole pine . In addition to North America , the mushroom <a href='drop_aux' title='5'><mark>is</mark></a>widespread in Europe , and its presence <a href='been_done' title='6'><mark>has</mark></a> been documented in Italy , Germany , and Scotland . The species <a href='drop_aux' title='7'><mark>is</mark></a>common in the latter location , but becoming increasingly rare in several European countries , such as Norway , The Netherlands , and the Czech Republic . Increased pollution in central Europe <a href='been_done' title='8'><mark>has</mark></a> been suggested as one possible factor in the mushroom <a href='null_genetive' title='9'><mark>'s</mark></a>decline there . Reports from Iran in 2008 and Korea in 2010 <a href='uninflect' title='10'><mark>were</mark></a> the first outside Europe and North America . 
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