The monitored area is devided into 10 parts, if applicable 9
equal in size and one used for a different substrate or landscape
element.
1 - one thallus, or less than 1 dm2
2 - occuring in one part of the plot
3 - occuring in 2-5 parts
4 - occuring in 2-5 parts, dominant
5 - occuring in 6 or more parts
6 - occuring in 6 or more parts, dominant