Cap 2–3 in. broad. Stem 2–2½ in. high, but variable in size. Its edible qualities are excellent.
B. lima´tulus Frost—polished. Pileus nearly flat, thin, glabrous, viscid when moist, somewhat polished and shining when dry, rich yellowish-brown. Flesh reddish in the pileus, darker in the stem. Tubes depressed around the stem, greenish-yellow, their mouths yellowish-brown. Stem small, subbulbous, colored like the pileus. Spores 12–15×4–5µ.
Pileus 1–2.5 in. broad.
Woods. New England, Frost.
By the differently-colored tube mouths, this species approaches those of the next following tribe, but it is placed here because these are not red or reddish. Peck, Boleti of the U.S.
B. au´ripes Pk.—yellow-stem. Pileus convex, subglabrous, yellowish-brown, sometimes cracking in areas when old. Flesh yellow, fading to whitish with age. Tubes nearly plane, their mouths small, subrotund, at first stuffed, yellow. Stem nearly equal, solid, even or slightly reticulated at the top, bright yellow, a little paler within. Spores ochraceous-brown tinged with green, 12×5µ.
Pileus 3–6 in. broad. Stem 3–5 in. long, 8–12 lines thick.
Under mountain laurel, Kalmia latifolia. Port Jefferson. July.
The whole plant, except the upper surface of the pileus, is of a beautiful yellow color. The stem is sometimes more highly colored than the tubes. The species is referable to the tribe Edules. Peck, 50th Rep. N.Y. State Bot.
Mt. Gretna, Pa. August, September, 1898. McIlvaine.