Deathcap flesh ranges from white to pale gray to a warm yellow-orange. Their heads resemble fungal caps, often either red with white spots, red at the center with a brown edge, or a bluish-purple tone. Although deathcaps have vicious-looking fanged mouths, they use them only to ingest earth or mineral nutrients.

Mushroom Farmers. These sentient mushroom folk tend the white forests of fungi in the underworld and are allies of the darakhul. Despite their ominous name, deathcap myconids are chiefly farmers. They cultivate dozens of species of mushrooms anywhere they have water, dung, and a bit of earth or slime in the underworld deeps. For this reason, other races rarely attack them. The ghouls do not eat them, and they cannot be made into darakhul.

Toxic Spores. Although deathcaps are mostly peaceful, their spores are toxic and sleep-inducing. They make excellent allies in combat because their abilities tend to punish attackers, but they aren't especially lethal on their own. They use their poison and slumber spores to full effect against living creatures; they typically flee from constructs and undead. They count on their allies (carrion beetles, darakhul, purple worms, dark creepers, or even various devils) to fend off the most powerful foes.

Clones. Deathcap myconids live in communal groups of related clones. They reproduce asexually, and an elder and its offspring can be nearly identical in all but age. These clone groups are called deathcap rings.

Myconids build no huts or towns, but their groups are defined by their crops and general appearance. Indeed, many sages claim that the deathcaps are merely the fruiting, mobile bodies of the forests they tend, and that this is why they fight so ferociously to defend their forests of giant fungi.