there are variations in growth types in a single lichen species, grey areas between the growth type descriptions

and are areas areolas areolate asphalt authors being between called center crack crackedup cracks crustose describe descriptions descriptionsnnwhen different dried gets grey growth island islands lakebed lichen lichens like may might mud old oldbroken olddried overlapping paint paving pieces polygonal rimose separated single some species start there this type types using variations