I have just had two of my “lichens” identified as (1) a mineral and (2) a stain.
We need a classification for “non living”. Both these observations are easily mis-interpreted as living and should be retained as examples of " non-fungi"
But there is no ID that satisfies this criterion.
An upper level ID equivalent to " State of matter Life" is needed for non-living things mistaken as life.
If I withdraw my incorrect ID of Lichen it becomes “Unknown”. This is wrong - it is known: it is non-living.