Pileus 3–8 in. broad. Stem 1–3 in. long, 6–12 lines thick.
Low ravines and sandy places. Wisconsin, Trelease; Iowa, McBride.
The spores easily serve to distinguish this species from its allies. The European B. sphærocephalus has ovoid spores, but its tube mouths are minute and rotund and its stem is densely squamose. Peck, Boleti of the U.S.
B. lu´teus L.—yellow. Pileus gibbous or convex, covered with a brownish separating gluten, becoming yellowish-brown and virgate-spotted. Flesh white. Tubes adnate, minute, simple, yellow, becoming darker with age. Stem stout, yellowish and dotted above the large membranous brownish-white annulus, brownish-white or yellowish below. Spores fusiform, yellowish-brown, 6–7×3–4µ.
Pileus 2–5 in. broad. Stem 1–2 in. long, 6–10 lines thick.
Pine woods and groves. New York, Peck.
B. luteus has an international reputation for edibility. I have found it at Waretown and Haddonfield, N.J.; in Bartram’s Garden, West Philadelphia, always under pines. At Waretown it was gregarious. Pine needles, sand, anything through which it grows, adheres to the glutinous cap. It must be carefully cleaned before cooking. It is then of choice consistency and good flavor.
Section of Boletus subluteus.