It has been recorded growing on a lead surface ( probably a weathered oxide ) .
It is a nitrophyte and can tolerate higher levels of atmospheric ammonia than can many other species of lichen , because it can survive on substrates with a higher pH .
nitrophyte has been recorded growing on a lead surface ( probably a weathered oxide ) .
It is a nitrophyte and can tolerate higher levels of atmospheric ammonia than can many other species of lichen , because it can survive on substrates with a higher pH .