The thin pileus and long slender stem readily distinguish this species. Peck, Boleti of the U.S.
B. auri´porus Pk.—golden-pore. Pileus convex or nearly plane, glabrous or merely pruinose-tomentose, grayish-brown, yellowish-brown, or reddish-brown. Flesh white, unchangeable. Tubes plane or slightly depressed around the stem, adnate or subdecurrent, bright golden-yellow, retaining their color when dried. Stem equal or slightly thickened at the base, viscid or glutinous when moist, especially toward the base, colored like or a little paler than the pileus. Spores 7.5–10×4–5µ.
Pileus 1–3 in. broad. Stem 1–3 in. long, 2–4 lines thick.
Thin woods and shaded banks. New York, Peck; New England, Frost.
This species is remarkable for the rich yellow color of the tubes, which is retained unchanged in the dried specimens, and for the viscid stem. This character, however, is not noticeable in dry weather and was overlooked in the original specimens.
Boletus glutinipes Frost Ms. is not distinct. Peck, Boleti of the U.S.
Hopkins' Woods, Haddonfield, N.J. Grassy oak woods. 1891–1894. McIlvaine.
The caps are delicious.
B. innix´us Frost. Pileus convex or nearly plane, glabrous, yellowish-brown, slightly cracked in areas when old, yellow in the interstices. Flesh white. Tubes adnate, lemon-yellow, unchangeable. Stem slender, short, much thickened at the base in large specimens, yellowish, streaked with brown, brownish within. Spores 10×5µ.
Grassy woods. New England. Frost.