Description
The Gem-studded Puffball is a small to medium-sized fungus that looks like it has been encrusted with tiny pearls or jewels. It is easily distinguished by the distinct, cone-shaped "gems" or warts that cover its surface, giving it a unique, tactile texture.

Habitat in the ANF
In the Allegheny National Forest, this is one of the most common puffballs. It is a terrestrial saprobe, meaning it grows directly on the ground or in leaf litter. Look for it in both deciduous and coniferous forests, often popping up along the edges of hiking trails, forest roads, and in grassy clearings from July through October.

Ecology and the "Wolf Fart" Mechanism
The genus name Lycoperdon literally translates to "wolf's flatulence," a nod to its spore-release method. When the mushroom matures, the white "gems" fall off, leaving a small hole at the top called an ostiole. When raindrops hit the flexible skin—or a hiker brushes against it—a puff of olive-brown spores is ejected out of the hole to be carried away by the wind.

Identification

The "Gems": The surface is covered in short, white, cone-shaped spines. These "gems" rub off easily when touched, leaving a faint circular scar behind.

The Shape: It is typically shaped like an inverted pear or a lightbulb, with a rounded head tapering into a thick, stalk-like base.

The Inside: Like all puffballs, the interior must be pure, solid white to be considered fresh. As it matures, the inside turns yellow, then olive-brown, and finally becomes a dry powder.

The Base: The stem-like base is spongy and often stays standing long after the top of the mushroom has shriveled.