Phycomid

Phycomids were a type of subterranean fungus creature that could be dangerous to adventurers.

Description
Phycomids resembled white, fibrous blobs of decomposing matter with capped fungi growing out of them.

Biology
Within several clusters of a phycomid's body were sensory organs that detected heat, sound, vibrations.

Combat
When attacking prey, phycomids discharge a highly alkaline substance in small globules from a tube-like appendage. This substance could potentially infect the targeted creatures, causing them to sprout mushroom-like growths that gradually spread throughout their body.

Ecology
Phycomids were one of many types of fungi that hook horrors were known to feast upon.

Some drow were known to install phycomids in locations to act as traps.