A scaled and bright blue fungus, it prefers high forests, and notably, grows mainly on the east side of trees.
East of Outpost Tau. Directly East and over the hills right next to the two eastern huts, just north of the eastern swamp. Go up the stairs and over the hill and the fungus will be right below. (circled on map pic). It's directly south of the Northern-most tent.
It can also be found in the centre of the butterly-looking lake on the hill east of Tau. In the picture at right, it's the large lake touching the southeast part of the survey circle.