Environment any underground
Organization solitary or infestation (2–8)
Treasure incidental

Typically found in damp dungeons, refuse heaps, and forgotten, filthy chambers, phycomids are dangerous fungoid creatures that grow in small, steaming patches among decomposing organic matter. The phycomid’s main body is a mass of green-brown mold that can slither and move when necessary to seek out new carrion to feed upon. Numerous mushrooms sprout from the main body—vile green stalks topped with purple or red caps that seem to steam with rank-smelling smoke. This smoke is in fact vapor escaping from the numerous globs of acid the plant produces as a method of both self-cefense and reproduction.

This acidic substance is expelled from the phycomid whenever it senses movement nearby, and seasoned adventurers can often trick a phycomid into giving away its true nature by simulating movement within range of the fungus. Less fortunate encounters are typically marked by large infestations of phycomids growing among a scattered collection of dead bodies. Because of the filthy environment in which this fungus thrives, goblins are one of the few races that have learned to coexist with phycomids. Not content to simply give the fungi a wide berth, these foolish goblins actually harvest the phycomids, prodding them into positions in their warrens where they can serve as guards and sentinels, utilizing long poles they call “slime sticks” or placing delicious-smelling carrion to attract the fungus to a desired position. Although phycomids are deadly to eat, many goblin tribes view those who eat a phycomid mushroom and survive as great heroes. Needless to say, most goblin lairs that attempt to utilize phycomids as guardians eventually become nothing more than phycomid lairs—a goblin tribe’s luck can only hold up for so long, after all.