Suillus brevipes

Suillus brevipes

Suillus brevipes is a species of fungus in the family Suillaceae. First described by American mycologists in the late 19th century, it is commonly known as the stubby-stalk or the short-stemmed slippery Jack. The fruit bodies produced by the fungus are characterized by a chocolate to reddish-brown cap covered with a sticky layer of slime, and a short whitish stipe.

About Suillus brevipes in brief

Summary Suillus brevipesSuillus brevipes is a species of fungus in the family Suillaceae. First described by American mycologists in the late 19th century, it is commonly known as the stubby-stalk or the short-stemmed slippery Jack. The fruit bodies produced by the fungus are characterized by a chocolate to reddish-brown cap covered with a sticky layer of slime, and a short whitish stipe that has neither a partial veil nor prominent, colored glandular dots. The mushrooms are edible, and are high in the essential fatty acid linoleic acid. The fungus is found throughout North America, and has been introduced to several other countries via transplanted pines. Like other bolete mushrooms, S.  brevipes produces spores in a vertically arranged layer of spongy tubes with openings that form a layer of small yellowish pores on the underside of the cap. The spores are elliptical, smooth, and have dimensions of 7–10 by 3–4µm.

The odor and taste are mild, but the flesh is initially white, but turns pale yellow in age. The spore print is cinnamon-brown, and the spores have spore-bearing basidia, which are basidia that have basidia in the middle of the spore. The stipe is white to pale yellow, dry, solid, not bruising, and pruinose. It is typically short in comparison to the cap, typically 1–2cm long and 1–6 cm thick. It is either of equal age, or may taper downwards; its surface bears minute puncture holes at maturity, or it is slightly fibrous at the base of the stipe. Collections made in New Zealand tend to have a reddish coloration at the very base of its stipe, but tend to a whiteness at the top of the flesh. The cap can reach a diameter of about 10 cm, while the Stipe is up to 6 cm long and 2 cm thick.