Sulliuscep

Sulliusceps are found in the Tar Swamp on Fossil Island. Chopping sulliusceps grant the player 83 experience per yield. Players can receive mushrooms mort myre fungus from chopping sulliusceps, but can also receive, albeit very rarely, a sulliuscep cap, which is used in creating mushroom pies. At level 65 Woodcutting, the estimated experience rate is 65,000 per hour, scaling to 90,000 at level 99.

There are six sulliusceps found throughout the swamp, but only one can be chopped down. Thus, players must traverse the Tar Swamp to find the choppable sulliuscep. Traveling through the swamp may require a rake to clear vines in addition to an axe. The swamp is home to extremely dangerous Tar Monsters, who deal typeless damage, and the Deranged archaeologist.

Should the sulliuscep spawn in a particularly dangerous area where the player is exposed to attacks from the deranged archaeologist or tar monsters, players can kill the sulliuscep instantly by using the "Inject" option, which requires 1 proboscis and 1 fungicide. This forces the sulliuscep to spawn in another area, which the player must find once more.