A pale fungus whose physical appearance bears a striking resemblance to a brain.
- Many can be found in the tunnel under the 65 highway, from north of Watoga to south of abandoned bog town. Look for tunnel openings along the highway.
- Many can be found throughout Uncanny Caverns.
- Many can be found at the abandoned waste dump around the cave.
- Many can be found at the Whitespring service entrance near the dumpsters.
- Many can be found in the Carson family bunker.
- Many can be found throughout the rough dug side tunnels in Big Bend Tunnel West and Big Bend Tunnel East.
- Three can be found in a pond full of anglers in the northeastern corner of the map, far north of the gnarled shallows.
- Two can be found at the house near the entrance to Vault 63.
- Two can be found in Reverend Delbert Winter's trailer in Flatwoods.
- Two in Raleigh Clay's bunker.
- Two can be found at the basement level of Kanawha Nuka-Cola plant.
- One can be found inside the airplane at Horizon's Rest.
- One is located on the second floor of Burdette Manor.
- One can be found in the basement of Hornwright summer villa.
- Helvetia church, underneath the Mothman worship.
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