Locations of the glowing mushrooms:
1 - Next to the Misty Bog portal
2 - Behind the large tree next to the portal for Tree Tops
3 - Next to the pyramid steps (side closest to the ballooist)
4 - On the highest reachable level of the pyramid (Take the steps and walk around the ledge to the back side where so you are facing the portals to Terrace Village)
5 - At the bottom of the well, right behind the portal to Wild Flight