Caloboletus conifericola

Caloboletus conifericola, commonly known as the dark bitter bolete, is a species of mushroom in the family Boletaceae. It is found in the Pacific Northwest.

Taxonomy
Caloboletus conifericola was first described by Alfredo Vizzini in 2014.

Description
The cap of Caloboletus conifericola is grayish-brown to olive gray and about 3-10 inches (7-25 cm) across. The stipe is about 2-10 inches (5-15 cm) long and about 1-2 inches wide at the top. It starts out wider at the base, but more or less evens out as the mushroom grows older. The pore surface is yellow, and the mushroom oxidizes blue when bruised.

Similar species
Caloboletus conifericola can be confused with Caloboletus calopus and ''Caloboletus frustuosus. Caloboletus calopus has a more reticulated stipe than C. conifericola, and C. frustulosus'' has a more cracked cap.

Habitat and ecology
Caloboletus conifericola is found in moss and leaf litter under conifer trees, especially grand fir and western hemlock. It is found fruiting during early fall, soon after the rains come.