Definition:
Tylopilus alboater is a species of bolete fungus in the family Boletaceae.
Overview:
Tylopilus alboater, commonly known as the black-footed tylopilus, is a basidiomycete fungus found primarily in eastern North America. It typically grows in mixed hardwood forests, often in association with oak and beech trees, forming mycorrhizal relationships with the roots of these trees. Fruiting bodies appear in summer and autumn.
Etymology/Origin:
The scientific name Tylopilus alboater combines elements from Greek and Latin. "Tylopilus" derives from the Greek "tylos," meaning "knot" or "bump," and "pilos," meaning "cap" or "felt," referring to the texture of the cap. The species epithet "alboater" combines "albus" (white) and "ater" (black), likely referencing the pale flesh contrasted with the dark stalk base.
Characteristics:
Tylopilus alboater has a convex to broadly plano-convex cap that ranges from 5 to 10 cm in diameter, with a dry, whitish to pale grayish-brown surface that may develop cracks with age. The pore surface is initially white but soon becomes pinkish, a distinguishing trait of the genus Tylopilus. The stalk is whitish but darkens to gray-black toward the base, hence one common name, black-footed tylopilus. The flesh is white and does not significantly change color when sliced. Microscopically, the spores are narrowly elliptical, with a reticulate surface, and typical of the genus, they produce a brown spore print.
Edibility has been reported as poor or bitter, and it is generally not recommended for consumption.
Related Topics:
- Genus Tylopilus
- Boletaceae family
- Mycorrhizal fungi
- Fungal biodiversity in North American forests
- Bolete identification and taxonomy