Xanthoria elegans
... that a study of lichen growth in the Canadian Rockies showed that Xanthoria elegans expands at a rate of 0.5 mm per year for the first century before slowing down?
... that a study of <a href="./Lichen" id="mwB3s" rel="mw:WikiLink" title="Lichen">lichen</a> growth in the <a href="./Canadian_Rockies" id="mwB3w" rel="mw:WikiLink" title="Canadian Rockies">Canadian Rockies</a> showed that <i id="mwB30"><b id="mwB34"><a class="mw-redirect" href="./Xanthoria_elegans" id="mwB38" rel="mw:WikiLink" title="Xanthoria elegans">Xanthoria elegans</a></b></i> <i id="mwB4A">(pictured)</i> expands at a rate of 0.5<span id="mwB4E" typeof="mw:Entity"> </span>mm per year for the first century before slowing down?